Anyone have a similar experience?

I've already had my period for the month of November.. I wasn't suppose to start till the 15th of December, but I started again November 30th and haven't stopped since.. I've been cramping like crazy. I just started with spotting, but now it's to the point it's worse then my regular period. I bleed through the biggest tampons you can buy 4-5 times a day. I've been to the ER and talked to my OBGYN and everyone keeps telling me go just wait till there's a pattern of something. I'm clueless as to what's going on or what to do. It's never happened before. ?