Constant stomach pain baby 7 days old

Trisha • "Faith is the substance of things hoped for and the evidence of things not seen"

After giving natural vaginal birth 7 days ago i have been having trouble laying down i cant lay on my side it gives me bad pains in stomach. And when i lay down i have to be sitting up as i use to do while pregnant. If i sit for a few minutes its hard for me to stand and when i do stand i will be slightly hunched over and have pains in stomach. I dont know what it is i have a big appetite always hungry but i have to eat really slow is something wrong? I am currently breastfeeding