I had a C-Section with my twins 20 months ago but I really don't remember having pain for that long. Maybe your jeans are too tight? I know you get pain that is caused by the amount of gas that gets trapped in there due to the fact of being so open and exposed to the air. Maybe you just have more gas than normal. I'm assuming you're not bleeding since you didn't mention it. I would call your doctor and ask or make an appt. But honestly I think you should see your doctor immediately, it could be nothing but you never know. Good luck!