Yes, that first day is always awful and that's the dog's reaction to the anesthesia. I'm glad you're both doing better! With the second one, the one of vet clinic's techs called me about 2 hours before Hysson was due to go home, held the phone up in the air so I could hear the howling, and said "I don't think Hysson likes it here!" He kept howling and barking for several hours at home, though. It didn't help that in his last few years he developed horrendous separation anxiety!

If the lump is being irritated, it about has to be removed, unless there's a way to alter or pad whatever the lump is rubbing against.