Re: Random Bleeding
I had blood in my stool earlier in the month and after tons of testing (including a CAT scan, a colonoscopy, etc) they determined it was a every day, run of the mill, hemrhoid.
Sounds gross, but I would try and lie down and take a look down there with a mirror. If it seems purple or swollen, or has a small lump, etc when you spread the anus a little bit, that's a hemorrhoid. You can Google pictures online to find comparisons.
The simplest solution is more fiber and they should heal on their own.
I myself have been eating high fiber, low carb, and a cup of Activia yogurt a day and have noticed a huge difference in my bowel health and have not had hemorrhoid bleeding since.