Post csection?

FTM here!

Had a csection 19 days ago. All is well overall but I notice a warmth and soreness in my belly area (still look.about 3-4 months preggo). Now I did have a big baby and a huge bump, I'm wondering if it's normal the skin are around the belly button to still be sore?

I'm not sure if it's just the skin slowly retracting or if its the abs healing etc. No signs of infection etc. But even wearing a shirt is irritatingly sore....