Ok seriously heres the deal. My main Coon Sasha needed emergency surgery thrusday she almost died from a pyle. Monday(today) i got her this pain killer cause she was doing alot of complaining. About an hour after I gave it it made her super mean. She started attacking the other animals in the house biting and big time fighting and she bit me in the hand drawing blood. My cats are now afraid of her and keeping there distance. She may just be in pain and tired and thats why she is acting crazy, but I dont know what to do has anyone else had this problem?