I have concerns. Istarted a regular period. It ended a day early. But I had some sharp cramping pains that evening. The next morning I started very heavy clotting, & bleeding excessively. I also have naseua & am lightheaded. I am fearful there is a serious condition. My periods last more than 7 days on a regular basis. & are very heavy. Also I have a lot of hair loss. I am wondering if the two are connected. Or if maybe I was pregnant? Any thoughts?