I got my period sunday morning and it has been very irregular very lite its usually a heavy flow for about 5 to 6 days well im on day 3 and its gone i have had alot of blood clots though. I also feel very dizzy and lightheaded and i have a pain in my back. Could this be a emergency situation i never had this problem before i was never a person to get my period on a set day usually always about the same each month give or take a few days but usually a very heavy flow. Please let me know.