Hello again, I wanted to add this update. I went through my filing cabinet and found the receipts of I.R.'s vet visits from last year. Here is a list of the dates and the treatment:

First visit to first vet: June 8, 2011. Treatment: Amoxidrops 30ml, Penicillin Procaine G per cc.

Second visit to first vet: June 13, 2011. Treatment: Dexamethasone per ml.

First visit to second vet: July 7, 2011. Treatment: Amoxidrops 20ml.

Third visit to first vet: July 16, 2011. Treatment: Clavamox drops 15ml.

I.R's still doing great, but she's got a new thing that she does that I suppose is a result of this happening to her. She only started doing this a couple of weeks ago. On her left side whenever we try to comb her or pet her near her back leg she has a spasm. She stretches out and gets stiff as a board and meows, but not like she's in pain, it sounds more as if she's confused. It stops after a few seconds and then she's back to normal. To avoid this from happening I try not to touch that spot, but sometimes it's unavoidable. Other than this new development she's still the same.

Thanks everyone for your help.