He has a infection and is on antibiotics. Not sure where the infection is as the vet couldn't pin point where in his body it is. Is responding well to antibiotics is eating again and his temperature is back to normal. Just noticed today the left ear is twitching all the time. Had his ears checked and no ear infection. Can this be caused by the infection that he is getting over now. All blood work came back normal. One thing is as he became sick his lip on the right side started to sag a lot, but pulled back up after starting antibiotics.