4 year old suddenly limping back leg
First of all, I plan on taking him in to vet tomorrow. But I'm just at a loss as to what is happening and reading stuff on google is freaking me out. He's a big boy, not obese, but probably a bit overweight, maybe around 90 lbs. Around Monday or Tuesday he started limping, not wanting to bear weight on his back leg. It started pretty suddenly. We were inside and he's lying around and at one point I just notice that he's limping. I checked his leg to see if maybe he had a piece of glass in his paw but it looks fine. Not broken, etc. When I touch his leg and slowly extend it he doesn't seem to be in pain or anything like that. It's a bit better today, he's putting a little more weight on it, but still limping a bit. The only thing out of the ordinary that happened was this weekend or Monday my husband was playing with the dogs when he came home and Cocoa likes to jump up when he gets excited. My husband grabbed him by the front legs at one point when they were playing as he jumped up and Cocoa let out a loud yelp like something had hurt real bad.
Anyone been through this before? I keep reading about hip displasia and wonder if the sudden movement the other day dislocated something. I'll post a video of the limp in a little bit when i have more posts.