Why Is My Dog Pacing and Won’t Settle?
A pacing dog is a dog who cannot settle, and the cause is usually one of several things: anxiety, pain, stomach trouble, a hormonal condition like Cushing’s disease, or, in older dogs, canine cognitive dysfunction (dog dementia). Most of those can wait for a regular vet appointment. One of them cannot: a dog who paces while retching without bringing anything up, drooling, with a swollen belly, may have bloat, and that is a race-to-the-ER emergency.
Quick answer
A dog who is pacing back and forth and cannot settle is usually uncomfortable, anxious, nauseous, in pain, or confused. In senior dogs, dementia and sundowning are common causes, especially when pacing is worse at night. But sudden pacing with retching, drooling, or a swollen belly can be bloat, which is an emergency.
Emergency signs: go now
Go to an emergency vet now if pacing comes with unproductive retching, drooling, a swollen or tight belly, collapse, pale gums, labored breathing, severe pain, a seizure, or sudden weakness. Sudden, severe restlessness in a large, deep-chested breed after a meal is bloat until proven otherwise.
Here is how to read the pacing, by what comes with it and by your dog’s age.
| Why a dog is pacing | Clues that point to it | What to do |
|---|---|---|
| Bloat (GDV) – emergency | Sudden pacing and distress with unproductive retching (nothing comes up), drooling, and a tight or swelling belly; most often a large, deep-chested breed after a big meal | Emergency vet now – bloat kills in hours |
| Anxiety or stress | A trigger you can spot (storms, fireworks, separation, a new home); panting, whining, clinginess | Manage the trigger; ask your vet for an anxiety plan if it persists |
| Pain (often arthritis) | Up, circle, down, and up again; reluctance on stairs, slow rising, licking one spot; worse at night | Vet pain assessment; treating it can transform the nights |
| Stomach upset (short of bloat) | Lip-licking, grass-eating, gulping; settles within a few hours | Watch; book a visit if it persists or repeats |
| Cushing’s disease | Pacing plus drinking and urinating much more, a pot-bellied look, thinning hair, big appetite, panting | Vet bloodwork; often manageable |
| Dementia (seniors, worst at night) | Repetitive, aimless loops with confusion, wall-staring, accidents, and a flipped sleep schedule | Vet exam plus the sundowning night-care plan |
| Needs out, hunger, or boredom | Pacing by the door; or an under-exercised young dog with energy to burn | Meet the need; in a senior, suddenly needing out more still warrants a vet chat |
First, rule out the emergency: bloat
Bloat (gastric dilatation-volvulus, GDV) is when the stomach fills with gas and can twist. It kills dogs in hours, and restless pacing is one of its first signs, because the dog cannot find a comfortable position. The combination to burn into memory: sudden pacing and obvious distress, plus unproductive retching (trying to vomit, nothing comes up), drooling, and a tight or swelling belly, most often in large, deep-chested breeds, often after a big meal. If that is what you are seeing, do not wait and do not search further. Go to the emergency vet now.
The everyday causes of pacing
Anxiety and stress
The most common cause at any age. Storms, fireworks, separation, a new home, a new baby, boarding. Anxious pacing usually has a trigger you can spot, and it comes with the rest of the body language: panting, whining, clinginess, an inability to relax even next to you. It tends to ease when the trigger passes; if it does not, talk to your vet about a real anxiety plan rather than living with it.
Pain
A dog who hurts often cannot get comfortable, so he stands up, circles, lies down, and gets up again. Arthritis is the classic quiet culprit in older dogs, and night is when it shows, after a day’s activity stiffens the joints. Pacing plus reluctance on stairs, slowness getting up, or licking one spot is pain until proven otherwise, and treating it can transform the nights.
Stomach upset
Short of bloat, plain nausea or an unhappy gut makes dogs restless: pacing, lip-licking, grass-eating, gulping. If it passes in a few hours and your dog is otherwise fine, watch and mention it to your vet. If it persists or repeats, book a visit.
Cushing’s disease
A hormonal condition of middle-aged and older dogs that vets check for when pacing comes with a cluster of other signs: drinking and urinating much more, a pot-bellied look, hair thinning, constant hunger, and panting. Restlessness, especially at night, is part of the picture. It is diagnosable with bloodwork and often manageable.
Needing to go, hunger, or boredom
The unglamorous causes are real too. A dog pacing by the door may simply need out (and in a senior, suddenly needing out more is itself worth a vet chat). A young, under-exercised dog paces because the engine is running with nowhere to go; more walks and brain work fix that one.
In a senior dog, think dementia, especially at night
When the pacer is 9 or older and the pacing is worst in the evening and overnight, canine cognitive dysfunction moves to the top of the list. Dementia pacing is repetitive and aimless, the same loop through the house, and it travels with confusion, wall-staring, accidents, and a flipped sleep schedule. Vets call the night-time version sundowning. If that sounds like your dog, two reads, in order: the dementia symptoms guide to confirm the pattern, and the sundowning night-care plan for what to do tonight. Then see your vet, because pain and dementia often share the same senior dog, and each has its own fix.
What to do now
- If emergency signs are present, go to the ER.
- If the pacing is recurring but stable, take a video and book a vet visit.
- If it happens mostly at night, check for pain, potty needs, and sundowning.
- Do not give human medications unless your vet tells you to.
What to tell your vet
Pattern beats description. Bring:
- When the pacing happens (time of day, after meals, during storms) and how long it lasts.
- What stops it, and what else you see: panting, drinking more, accidents, stiffness, confusion.
- All medications and supplements, and any recent changes.
- A 30-second video of a pacing episode, the single most useful thing you can bring.
References and further reading
- Merck Veterinary Manual. Gastric Dilation and Volvulus (Bloat) in Small Animals. (The bloat emergency this page leads with: signs include nonproductive retching, drooling, restlessness, and a distended abdomen.)
- Cornell University Riney Canine Health Center. Cognitive dysfunction in senior dogs. (Pacing and restlessness as part of canine cognitive dysfunction.)
- 2023 AAHA Senior Care Guidelines for Dogs and Cats. American Animal Hospital Association. (Why new restlessness in a senior dog deserves a workup for pain and medical causes, not just age.)
Frequently asked questions
Why is my dog pacing back and forth and won’t lie down?
A dog who paces and refuses to lie down is either uncomfortable or anxious. Pain (especially arthritis), stomach trouble, anxiety, Cushing’s disease, and dementia in seniors are the common causes. If the restlessness comes with unproductive retching, drooling, and a swelling belly, treat it as bloat and go to an emergency vet immediately.
Why is my dog pacing at night?
Night pacing in younger dogs is usually anxiety or insufficient daytime exercise. In senior dogs the leading causes are arthritis pain, which worsens at night, and canine cognitive dysfunction, whose sundowning pattern peaks after dark with pacing, panting, and vocalizing. A vet exam plus a night-care routine addresses both; see our sundowning guide.
Why is my dog pacing and panting?
Pacing with panting points to distress: pain, anxiety, heat, Cushing’s disease, or nausea. In an older dog it can also be sundowning from dementia. If it is sudden and severe, or comes with retching and a tight belly, rule out bloat at an emergency vet. If it is recurring, book an exam and bring a video.
When is dog pacing an emergency?
Go to an emergency vet if pacing comes with unproductive retching, drooling, a swollen or tight belly, collapse, labored breathing, pale gums, or a seizure. Sudden, severe restlessness in a large deep-chested breed after a meal is bloat until proven otherwise.
Is pacing a sign of dementia in old dogs?
Yes. Repetitive, aimless pacing, worst in the evening and at night, is one of the most common signs of canine cognitive dysfunction, usually alongside confusion, wall-staring, accidents, or a flipped sleep schedule. Check the full symptoms guide and see your vet; pain can look identical and often coexists.
Why is my dog suddenly pacing and acting weird?
Sudden is the key word: pacing that appears over hours points to the body first – pain, nausea, bloat (check for retching and a swollen belly – that is an emergency), or something as simple as an urgent need to go out. Pacing that builds gradually over weeks points more toward anxiety or, in seniors, cognitive decline. A sudden change in an older dog is worth a same-day call either way.
This guide is educational and is not a substitute for veterinary diagnosis or care. If you are worried about your dog, talk to your veterinarian.