You're a little young to have gall stones, though it is possible, you also could also have ulcers, again you are a little young for that, it also could be a hernia, as the other answer said, you need to tell your parents, you should see a doctor

The best way is to use a blow-dryer, it dries it slowly, while getting any moisture out

This is not a good thing, it's either something you ate or you have blood in your BM's, blood in the intestines will cause the black diarrhea. The only other possibility is too much iron in your diet, when we take too much iron, our body can't absorb it and we excrete it in our … Read more

It sounds like you have pancreatic and/or gall stones. You may have let the gall stones go so long that they have created the inflamed pancreas. Either way, the gall bladder being inflamed will cause your liver to become inflamed and cause your liver to back up, resulting in the rash and yellow skin... … Read more