It can take a long time for nerves to heal, those nerves are necessary for sensation and control, but you definitely want to see a doctor to make sure all is healing correctly and in the best way possible! I would consult your OB and possibly the Urologist too if you can. Don't wait!
What I can tell you is to get to your doctor and make them poke around to find out the problem. Kind of doubt it's a kidney infection because I have had one and it is extreme pain. Buckled over, don't want to eat and willingly wanting to go to the er (I have a very high tolerance for pain). Hope all is well with you. Find out as soon add you can!