Hello! My boyfriends family has a 13 year old male cat named Kirby. He has a huge bump above his left flank. Hes lame on his left leg but other than that he hasn't shown that he's in any pain. At first his family was thinking that is could've been a wasp sting but it's hard like none and doesn't match how his other side feels. I was thinking he has a dislocated hip? We're hoping to call his vet and get him in tomorrow but I was wondering if we can do anything to help him for now.