From what you are describing Hun it sounds very similar to mine...I could feel my stitches inside too.
My surgeon is one of the best I haven't asked him why he did it that way all I know is after the first incident after my flare. I have had no pain at all from the incision site and not even a hint of infection.
I think the pain is probably due to the swelling mine was horrendous and I remembered the pain did decrease significantly one the swelling went down. Unfortunately everyone's body reacts differently and what took me 3/5 days could take another person 7.
Hang in there Hun