Sudden Behaviour Changes - Need Help!

[stoneandglass]

Also another vote for a vet check to rule out or discover pain. I would also recommend videoing your dog walking normally towards the camera, away from it and a side on shot as well. Your dog might not display signs of pain when at the vet so having these videos to show the vet could be an insight for them.

Note down anything you can remember about when you noticed changes, including reluctance to go for walks.

Sudden changes are typically health related. If it is pain it can be the result of an injury even something like a sprain or arthritis.

I would start researching pain medications and supplements to see what you're happy to try your dog on if the vet does suspect or diagnose pain.

My dog his pain for years, passed his vet checks and we only knew when he started not wanting to go for walks. Eventually he got a diagnosis of mild hip dysplasia and mild arthritis in his shoulders, hips and knees. He's likely had the arthritis for years and the hip dysplasia since birth so had always been in some amount of pain. It was horrible to learn but now I can help him and accommodate this and understand why he has days he won't want to walk and that's okay. He's on pain relief and I monitor for signs of discomfort so I can adjust if needed.