I am totally new here. We adopted an one year old (estimated) lab mix 2 months ago. About 3 to 4 weeks ago, we noticed that she held her right rear leg up when she waked up from sleeping. We dismissed as "sleeping leg." But it didn't go away so we took her to our vet. He checked the leg and didn't find any issue so he prescribed anti inflammatory medicine for two weeks. The last dose was last Friday and she seemed doing ok for the two weeks when she was on medication. But over the weekend, the problem came back.
After she does some walking, she seems fine with using the leg. In any case, she never slowed down, even with only three legs in the first few minutes waking up from sleeping . She continues to run and jump and chase rabbits during walk. She is getting a lot of exercise - 2 hours of walk per day on average plus play time in the back yard.
Please advise on what we should do. Thanks a lot in advance.
Did your vet check out the patella?
Ask for hip xrays.