Okay heres my problem....Peanut (yorkie/maltese) was sitting on the couch and Lexie my little yorkie girl jumped up on the arm of the couch and knocked him off...He didn't cry or anything but he is limping on his back leg, I can't figure out if it is his leg or back...I am going to take him to the vet tomorrow, but I don't know if I should take him to vet er tonight...he is getting up and walking (limping) and I took him and put him in the pool (holding him) trying to getting him move his muscle. He is 8 years old, that is why I am worried..besides limping or holding his paw up most the time he isn't crying or acting like he broke it... he lets me massage it and rub his back I am hoping he maybe just sprain his ankle ...any help would be appreciated .....here is a pic showing you how he likes to sit up on the arm of the couch...Thanks guys I desperately need advise.....