im 18 years old i have an irregular period i only get my period every 3 to 5 months it that a problem should i let my doctor know ? when i do get my period its very light and sometimes only last for like 3days or some but recently its been geting worse im on my period right now and ive been on it for like two week gonna be three should i go see a doctor and i have a lot of blood clot and ive been having abdominal pain & back pain ? plaese help me out ?