Normally i have a light period flow but this time its heavy and clotty and i feel weak. im anemic and i heard this was a serious symptom. what to do?

Go to ER: If you are bleeding so much you feel weak, and are already anemic, you should go to the emergency room to get checked out by a doctor. Make sure you let the er staff know that you have a history of anemia, review your symptoms with them, and tell them about your overly heavy periods. They may have you see a gynecologist when you are there.

Go to see your MD: Go to see your doctor for further evaluation. Also need to get some blood work to see if you are anemic and to figure out the cause- which in your case probably related to your heavy bleeding- check your iron level and thyroid level importantly. If your menses continue to be heavy- need to see your gynecologist to evaluate the cause of heavy menses. Good luck.