After buying a lot of expensive, food-grade hydrogen peroxide for oral use, for the elimination of intestinal worms that I may, or may not have, I've got two issues. Issue #1: I'm worried that this valuable peroxide will be worthless in one year. Issue #2: Regardless of how little of this peroxide I take, my body responds with a combination of nausea and diarrhea. I wonder what it is that I should I do. Any advice?