Bleeding?

And I thought I had it bad. My mom is afraid to try different diets alone, and since I could lose a good 25lbs I normally join her to keep her motivated. She bought these new pills called Alli which inhibits an enzyme made by the liver and put in the stomach to digest fats so this pill stops the body from absorbing any fat over 15g. For brunch I had a Steak bomber, mac salad, french fries, which resulted in a very high fattening meal and so I took this pill. The next day when I wake up, I find my boxers have what looks like a blood stain. Turns out its all fat that this pill has it LEAK out of your anus. I spent the morning shitting what looks just like pizza grease.