My cat Marbles has been excessively grooming himself. I think it's after we cleaned our carpet but I am not sure. I am assuming that's when he started that because that's the only change we had since I have had him. Yesterday my husband took Marbles to the clinic and the vet gave him steroid shot in the muscle that supposed to come him down. When he got home he was fine. I fed him at 7:00pm and went to bed at 12:00am and at that time Marbles was fine acting normal as he usually would. This morning I walk up and usually he is by my bed waiting for his breakfast with the other two cats but he was not there. I didn't think anything started to call everyone for breakfast and the two showed up but him. I frantically started to look for him almost had a heart attack than found him under the bed. I kept calling him but he would not come out. I pulled him from under the bed and he meowed so I put him next to his dish and he looked at the food like he was interested but didn't eat it. He went back under the bed. I pulled him out again and he meowed again. I put him on my bed he must have been there for a little bit then went back under the bed. I already called the clinic the vet thinks it could be that he is sore and upset but I am very worried about him. Marbles has never been hiding under the bed he always came out even the time when he didn't want to eat one day but at least he came out to see what was there. I tried to give him treats but he didn't care for them either. I am taking him to another vet this afternoon but thought I would ask for opinions and advice on this. What makes me upset is that I brought in perfectly healthy cat with minor problem and the next day he acts sick. I am switching the clinic for all my cats at this point but I am very concerned for my little Marbles.