About 10 days ago, I woke up with a bloody nose. After about 10 minutes I started spitting up a lot of blood and then my other nostril started to bleed. The nose bleed lasted about an hour and a half, then i went to school. During school, i started to become extremely dizzy and short of breath. I went home that day, but then for the next 4 days i would hack up mucus that instead of yellow or clear was all blood. It stopped, but recently in the past two days it's back and the blood is dark. For a long time i have had black streaks in my phlegm that looks like tar, but i am not a smoker.
I have been feeling weak lately and i've head headaches all the time.
Let me know what is going on, and i am soo scared!