AWWW minge. Sounds like you are having a terrible time. so sorry.

I had a surgery when I was around 14 in my pubic/navel area. I won't go into details but I sort of know what you are talking about. I have a numb, cold spot right around my navel. Anytime a nerve is cut or injured it does do wierd things. That tingling thing you talked about in the upper thigh and hip area I sort of understand that. Anytime you mess with a nerve IF it is going to heal it is going to take a really Long time. That was 45 years ago for me and occassionally I do have those sensations you describe but they are much less now. They were much worse during my childbearing years.

I also have had some other nerve injuries throughout my life and it did take a long time to heal and I experienced Many strange sensations along with numbness and pain. I believe that is called paresthesia.