I was coughing hard and felt a ripping sensation deep in my rectum. Have had pain since any idea what it is?

The pain is deep inside and it just about kills me to have a bowel movement. I haven't noticed any blood or anything from there, so I don't know if I should be worried or let it heal itself. I don't have insurance so that is why I haven't been to a Dr. It also hurts if I sit a certain way.