Possible Colon Tearing?

Months ago I noticed a slight popping feeling in my lower left abdominal side while I was pushing to go to the bathroom. Since then I’ve noticed random blood in my stool that is bright red which I assume signifies the problem is close to my rectum. I also had a period where I was constipated for awhile but was normal for a while after. This last week I have had an upset stomach and was pushing hard to go to the bathroom. I had blood in my stool this morning, but my side hurts more now than it ever did before. Not excruciating but highly uncomfortable. I don’t have health insurance right now so I’m not sure when I can see a doctor. I assume I tore part of my colon and it’s leaking blood into my stool when I go to the bathroom. Is there something I can do to help heal by myself or should I seek medical attention?