I started my period yesterday and I've been having unbearable cramps. Today I passed 12 golf ball sized clots within 20 mins. I felt dizzy like I was going to pass out so I took a nap. I awoke 2 hours later to find I hadn't bled in my sleep, but the minute I got up and walked around the large blood clots came back. Could I have some kind of internal bleeding related to my period? I'm so scared and in extreme pain. I can't even move. I also have a chronic, but lighter pelvic pain throughout the month. I know I need to see a specialist, but any thoughts til I can get in?