Talk to Gynecologist on C-section

Aoa. I've previously posted my queries but my post didn't approve. I've delivered my baby via c-section on 17th of october.. I'm ftm so i want some guidance. 1. How long can i sit as i feel mild pain in stitches after sitting for so long and in which position should i sit.. 2. I feel pain in my spine when i laydown after walking and sitting and feeding my baby 3. I'm not bleeding just spotting sometimes. Is it normal? 4. Can i use belt and do some exercise? Kindly approve my post please.