Hi Doc. I'm 44 Years Old & I Have Never

hi doc. i'm 44 years old & i have never been pregnant. my period slowing started august 2nd & became severely heaving toward the 2nd week W/blood clots & stopped on aug. 18. but it came back slowly aug. 25- severly heavy on 27th and i'm still blooding severly heavy. its been going on for almost a month now. im really scared. this has never happened to me before. help? what going on with me?