There are quite a few posts, Kreaybutt, on the Lis surgery forum for you to read. Choose the ones with plenty of posts, as that usually means that the person came back and wrote of their recovery. The trouble is, many people, once healed, leave this forum (and who can blame them...). Possibly there are a few women on here who can give you some advice. I have not had the LIS surgery, so can't advise you there, but I can understand that with experiencing the pain and nursing your baby, it must be difficult. Many people have had LIS and sailed through, that much I know.
All the best, and hope you feel better soon.
Sav