I had this too round about 8 or 9 months after my section and spoke to the doctor. He reminded me that it is a big operation and said it is usually about a year to fully recover from it in terms of nerves, muscles etc.
Always worth a word with the health visitor or trip to the GP just to checked though as obviously every body is different and you'll want to rule out infection around the scar or anything like that - I picked up a nasty infection in my wound and ,boy, did it hurt!
Congratulations on the safe arrival of your little one.