What are these symptoms of? (Medical Experts Preferred)?

You need to start listening to your body. When you stopped eating chocolate, the diarrhea also stopped, so I would stay away from chocolate for a while. I would also try to eat frequent, healthy meals instead of sugary, processed fast foods. I have a feeling once school is over with for the summer, your body will return to normal. If it doesn't, make an appointment to see your regular physician for a checkup. Only your physician can accurately diagnose and treat your symptoms. Good luck.