I am 17 going on 18. My period lasted 3 weeks already and it the blood comes out in clots. I'm drowzy throughout the day even when I had a good amount of sleep and eat healthy amounts of food. Small cuts and bruises haven't healed and its been a month. I'm not sexually active, so I don't know what the issue is.
What's wrong with me? And what should I do?

I have a friend who had similar symptoms - bruising easily, heavy and prolonged periods and feeling tired. She was diagnosed with hemophelia. It is much more common in men, but can effect women.

But it could be lots of things. You need to see a doctor as soon as possible.