Hi im a 26 year old female who has weird things going on with me . Sometimes i have random cramps on my overies , im irregular with my period i can go almost a year without my period i vomit and feel nauseous and have bein eating alot in the past month iv takin a pregnacy test its negative but feel asthough i am pregnant the only think i can keep down is pork evrything else makes me vomit . I have back pain headaches really moody i dont know what could be wrong with me? Please help .