Urgent! Please help!

I had a repeat c-section on September 2nd and I'm absolutely convinced that I have nerve damage or that they left something in me during the procedure (too much tv). I've been in the worst pain since I got home on Sunday but have just tried to deal with it since I hate hospitals and don't want to be away from my babies, especially my newborn. HOWEVER, I feel like I'm being burned alive from the inside out every time I get up. I've had my doctor prescribe several different pain medicines and literally nothing has helped. It's so bad that I'd limited myself to getting up twice to use the restroom up until Wednesday night when I decided once would be enough, as I started thinking I'd pass out from the pain. And as embarrassing as this is: I just had my SO bring me two solo cups to urinate in because I can't get up at all!