My 2 yr old broke his hip and got surgery on Monday. He is in pain, I just started bupronex after finishing the 3 day nsaid. He seems to be in pain. He meows when he moves, hisses and wacks his tail around. I dont know if this os par for the course or I should be freacking out. The vet didnt seem concerned, but Im the one watching him feel terrible. Is this normal after surgery?