Hi, im 16 and i havent been feeling my self lately. Ive had these mild headaches were i just cant think straight, i tend to get tired and sleepy very easily, i have loss of appetite, anything i eat makes my stomach hurt and my abdominal. I had my appendix removed so it cant be appendicitis. My nipples have also been kinda sore, thought it could be my period but im irregular so im not sure . Please help!!