horrible pain on the back and front of my ribs?

So for the past few months, about once a week I will wake up in the middle of the night with this horrible pain on the right side of my ribs. It will be in the back and front of my ribs and makes my back hurt too. I assume that I'm hungry and I need to eat so I try to eat. Sometimes it helps but sometimes the pain will stay there till the middle of the day. It feels like I and being crushed by someone. Like someone is squeezing my ribs till they crack. It hurts when I breathe in also. Heat usually helps the pain but doesn't make it go away. I'm not sure what is wrong with me but it's getting old. I've never had this happen before. This started after I had a misscarriage and had to have a mini surgery. Im afraid to go to the doctor cause I'm already in debt and don't really want to add to that. But if I have to then I will. But if someone could maybe help me out a little I'd appreciate it.
Thank you!