I'm in my teenage years. I've been experiencing some unusual symptoms lately. Like: - fatigue - diarrhea - stomach pain (intense) - nausea but no vomiting - cravings for Taco Bell, pickles & ice pops - little vaginal bleeding but no full period. - extreme mood changes. - intense headaches I've been to the doctors and everything came out normal. They tested for pregnancy & cancers & other illnesses and everything was fine. I'm just sick and tired of being sick and tired all the time &I it's affecting my school work.