When your dog gets older, you expect gray fur and slower walks. What you do not always expect is a personality shift. A dog who used to settle easily might start pacing at night. A confident companion might become clingy, jumpy, or uneasy in familiar places.
If that sounds like your dog, trust your instincts. These changes can point to anxiety, but they can also come from discomfort, sensory loss, or age related brain changes. The good news is that once you spot the pattern, you can make life easier for your dog and calmer for you.
This article walks you through common signs, what may be driving them, and simple ways to help right away.
How anxiety can show up in senior dogs
In older dogs, anxiety often looks like unease that does not match what is happening. Some dogs become restless and cannot settle.
Others become more attached and shadow you closely. Some vocalize more than they used to, even though their routine has not changed. You might also see new house training accidents, especially during stressful moments.

None of these signs are โproofโ on their own. Think of them as clues. Your job is to notice what is new, what is getting worse, and what seems to set it off.
Behavioral signs that often get missed
Many owners only notice the big moments, like barking through the night or refusing to be alone. Before that, there are usually smaller shifts.
You may see your dog pause at doorways or hesitate on familiar walks. They might startle when you enter a room, or seem uneasy if you approach from behind. Some dogs stop greeting visitors because they feel overwhelmed. Others follow you everywhere, then panic when you shut a door, even for a minute.
Here are common behavior changes that can point to anxiety or stress:
- Pacing or wandering without settling
- Following you closely and becoming upset when you leave
- Increased whining, barking, or howling
- Scratching at doors, chewing, or other stress behavior
- Hiding, pulling away, or losing interest in favorite routines
- New accidents indoors, especially during stressful moments
If you are seeing several of these and they are happening regularly, it is worth taking seriously.
Physical signs that can look like anxiety
Stress often shows up in the body. With senior dogs, that can get confusing because pain and illness can look similar.
You might notice panting when it is not hot and your dog has not exercised. You might see trembling, a tense posture, pinned ears, or a tucked tail. Some dogs lick their paws more, drool more, or seem unable to relax their body.
Digestive upset can happen too. Some dogs skip meals during stressful periods. Others have loose stools or occasional vomiting when they are worked up.
If physical signs appear suddenly, or if they come with a clear drop in appetite, energy, or mobility, do not assume it is only anxiety. A medical issue may be sitting underneath the behavior.
Anxiety or aging: how to tell what is going on
Normal aging tends to be gradual. You may notice slower movement, longer naps, and lower stamina over months or years.
Anxiety like behavior often has a distressed feel to it. It may spike at certain times or in certain situations, such as when you leave the house, when loud noises happen, when visitors arrive, or after dark.

Even so, there is overlap. Pain can cause restlessness. Hearing or vision loss can cause uncertainty. Age related brain changes can cause confusion that looks like fear.
Because of that, when a new behavior appears or an existing issue suddenly gets worse, a veterinary check is a smart first step. It is the fastest way to rule out treatable causes and get a clearer plan.
Nighttime restlessness and the evening spiral
Many senior dogs struggle more after dark. Some owners call this sundowning, meaning symptoms feel worse in the evening and overnight.
You might see pacing, panting, whining, or getting up repeatedly. Your dog may seem lost in a room they have known for years. They might scratch at bedroom doors, roam the hall, or stare into space.
Cognitive changes are one common reason this happens, but they are not the only reason. Pain can flare when a dog rests too long. Poor vision can make the house feel unfamiliar in the dark. Needing to go outside can become more urgent with age.
If you are dealing with nighttime pacing, try this tonight:
- Add a night light in the hallway and near the water bowl
- Keep pathways clear and avoid moving furniture
- Offer a short, calm potty break right before bed
- Keep bedtime steady, even on weekends
These steps will not fix everything, but they often reduce the intensity quickly.
Common causes behind anxiety in older dogs
Older dogs rarely become anxious for no reason. Usually, something has changed in their body, their senses, their routine, or their coping ability.
Pain and discomfort
Arthritis, dental pain, and other chronic discomfort can make it hard for a dog to settle. A dog who cannot get comfortable may pace, pant, or keep changing positions. Some dogs also become more reactive because they are guarding a sore body.
A useful clue is timing. If your dog seems more unsettled after longer rest, after cold weather, or after a longer walk than usual, pain may be part of the picture.
Age related brain changes
Canine cognitive dysfunction is often compared to dementia in people. Dogs may become disoriented, sleep at odd times, forget house training, or seem less aware of their surroundings. Some dogs get stuck in corners or wander without a clear purpose. These signs often feel worse at night.
Sensory loss
When a dog cannot see or hear clearly, the world becomes less predictable. They may startle when you approach. They may not recognize sounds that used to reassure them. Darkness can make navigation harder, which can turn into nighttime anxiety.
If your dog is anxious in the dark, keep lighting consistent and approach with a soft voice and gentle movement so you do not surprise them.
Medical issues that mimic anxiety
Some health problems can cause restlessness, accidents, or behavior changes that look like anxiety. Endocrine problems and urinary issues are two examples. That is why a vet check matters when symptoms are new, worsening, or disruptive.
Separation related distress
Some older dogs develop separation distress even if they never had it when younger. Changes in hearing, vision, or cognition can make being alone feel confusing. Some dogs also seek more reassurance from their people as their world feels less certain.
If your dog panics when you leave, start small. Practice short separations while you are still at home, like stepping behind a door for a few seconds, then returning before your dog escalates. Build slowly from there.
Routine and environment changes
Senior dogs often rely on familiar patterns. A move, a new pet, a change in schedule, or even rearranged furniture can unsettle them. Loud noises can become harder to cope with too, especially when a dog cannot clearly tell where a sound is coming from.
If you have had a recent change in the home, steady routines and predictable โanchorsโ help, like meals, a calm evening walk, and the same sleep setup every night.
Predisposition and life experience
Genetics can influence how prone a dog is to stress, and breed differences in anxiety traits are well known. Past experiences can shape how a dog responds to uncertainty too. None of this means your dog is doomed to struggle. It simply helps explain why one dog adapts easily while another needs more support.
What you can do right now to help
You do not have to solve everything in one day. Start with small changes that make your dog feel more secure.
Keep routines predictable. Feed, walk, and settle down for the night around the same times when you can.
Create a comfort zone. Give your dog a quiet resting spot with soft bedding, easy access to water, and a clear path that is not slippery.
Reduce triggers where possible. If noise is an issue, close windows and create a quieter room away from the loudest part of the home. If visitors are stressful, let your dog rest in a calm area instead of forcing interaction.
Support calm behavior. When your dog chooses their bed, settles quietly, or relaxes near you, reward that calm moment with gentle praise or a small treat.
Most importantly, do not punish anxiety behavior. Scolding accidents, barking, or pacing usually makes the problem worse. Your dog is not being stubborn. They are struggling.
When to call your vet and what to share
If the behavior is new, escalating, or affecting quality of life, a vet visit is a smart next step. Bring specific examples. Note when the behavior happens, what seems to trigger it, how long it lasts, and whether anything helps.

Ask about pain, sleep disruption, sensory loss, and cognitive change. If your dog has accidents, mention how often they happen and whether your dog seems urgent or distressed. Those details help your vet decide what to check and what support may help most.
You are not failing your dog
Anxiety in a senior dog can feel heartbreaking, especially if your dog used to be easygoing. But this is not a reflection on your care. Older dogs change, and sometimes their needs change quickly.
With the right mix of comfort, routine, and medical support when needed, many dogs settle again. Even when the issue does not disappear overnight, you can make your dogโs days feel calmer, safer, and more familiar.