I would like to know what could be wrong with me if I have missed my periods for 6 months. I know I'm not pregnant... this has been going on since I started my periods in 2004 I would skip two months sometimes three but never six! And whenever I go on my period I have terrible pains that cause loss of appetite, nausea, dizziness and leave me so powerless! I literally can't do anything because the blood would flow heavily for a period of a month! I've been to two different doctors who have both injected me but I haven't been to the doctor recently because I'm scared of the unknown! Please help...