There are several discussions about what to expect with intra-oral surgery, but not many have had bilateral…it will be painful, & although I’ve not had intra-oral myself, from what I’ve read on here about members’ experiences, I would respectfully disagree with your doctor’s view about pain! It certainly pays to be prepared…Praying for a successful surgery for you, let us know how you get on when you’re able 
4 days post op, intra-oral, stitches coming out already - General - Living with Eagle