i started my period about 2 weeks ago but it has been really weird for 2 days i bled super heavy changing tampons once an hour with huge blood clots on them then on the 3rd day i stopped all together then the 4th day i started blleeding again super heavy then the 5th day stopped again since then everytime i eat and at night i get to were i feel like i could vomit im 26 and my tubes are tied so i dont think im pregnat but what else could cause this crazy stuff please help :-(