Hi, Robin.
Welcome, to the forum mate. I already had pains in my lower back and hips prior to surgery, due to a bit of arthritis. I dont know if RARP exacerbated the problem.
I remember I was sore in the abdomen for a while.
You've got to remember, mate, that you have gone through major surgery, and yours seems to have been extra difficult. You've probably got quite extensive internal bruising that may cause pain in those regions.
What sort of work do you do? Are they okay with you being off sick?