Caring for a Three Legged Dog or Cat

Yes he did pee last night. He also got hurt. My daughter raised her hand with food in it and he jumped for it. I don't know if he hit his side or if it was the way he landed, but he howled and cried like I never heard in my life, continuously for a couple of minutes. We were afraid he did damage, but the stitches look intact. He has barely moved today, lying on the couch . He has been crying almost every time he moves. Worse day yet by far. He cried more when changing his bandage today, and we noticed when doing this he has swelling in his groin area. That was very concerning. Which may explain why he is not peeing much. When he got up this morning, he walked to the kitchen cried and dribbled on the floor abit.
We talked to the vet, they said there was no outside stitches from the neuter, whew , he did not tear anything out. They said he would feel worse before he feels better. And maybe bring him back tomorrow for the groin swelling, they seemed a little concerned about that

Emotional roller coaster. Best way to describe this journey