Sorry to hear that you are still experiencing pain. I might be all the nerve endings that have been cut both times.
I dont know if it is the same but it could be a similar feeling to what i had on both my legs/knees after bilateral knee replacements. I was told by the surgeon and physio that it is due to the large incisions and all the nerve endings that get cut. Heaps of nerves get damaged when they cut through so it could be the same with you.
They told me i have to massage the area's with a good cream to stimulate the growth. Try and go sideways across the area twice per day. After 7 months i still have large areas that are very sensitive to touch still but it is improving with time. Good luck with your pain and hope you can find a solution soon
Cheers Joxx