So Monday 11/13 I was supposed to get my period. But I had severe cramps and spotting like very light only saw it when I would wipe after about an hour it was gone. Later that night it started again. Then Tuesday morning 11/14 it was more than spotting accompanied by severe back pain, cramps, nausea and headache. But it wasn’t enough to fill a tampon/pad. Then yesterday 11/15 I had nothing all day/night just severe cramps, back pain, nauseous, no appetite, an headache. An this morning I woke up to excruciating cramps ran to the bathroom an it literally felt like my whole uterus fell out. I looked and there was about a golf ball size blood clot that came out. But now I feel fine no cramps no nothing. I feel like a whole new person. I NEVER had this happen before. Does anyone know what it could be??????