Okay, I had EXACTLY the same thing.
My most memorable story was I got a nosebleed during the middle of a math test- and it was quite a doozy. It started out as the sniffles, to the hand wipe, then finally realizing the stuff on the back of my hand is red.
I finish the math test (got a 98%
), then ran out to the bathroom to stop the blood.
I happened to have an appt with my allergist later that month, and I asked him about my nose bleeds. He proceeded to tell me that it has something to do with allergies and sinuses. Can't remember exact details.
But what he recommended was for me to do a sinus rinse until my allergies went back down (I have seasonal allergies+dustmites). It worked pretty well.
But everyone is different. You can try the method that worked for me- it shouldn't do you any harm. But if that doesn't work, then go see an allergist or some other doctor that is knowledgeable with allergies.
Good luck.