Mr 3 yr old lab started acting strange this afternoon. She is not being her usual lab self: following me everywhere, coming for treats, playing with my other lab.... She's very reluctant to walk anywhere and when she does she's doing it with her tail between her legs and will sit down next to me immediately. There is a fire in the next state that we can smell and she seems to be smelling the air a lot and doesn't want to go outside. She also is laying or sitting down all the time; she won't lay on her side or back and won't let me roll her over. She's ok with me pushing in her stomach to see if it hurts and she doesn't seem like anything is hurting her physically. Any advice?