How come its bad to tilt ur head back during a nosebleed

I don't really know. I've done this since I was 4 when I used to get nose bleeds that lasted a good while. I got them until I was an adult when a specialist cotterized (sp?) a blood vessel in my nose. I got them even then, but not as often and not as persistently.

I also put ice cold ice packs on my forehead.

I suppose you are swallowing blood that has been exposed to the air. That means it is carrying oxygenated blood. Other than being prohibited in the Bible, I don't see anything really wrong with it. When you look it up, it says that it can bring about vomiting. That never happened to me.

Because this position causes the blood to run backwards and down the throat which can lead to the stomach and cause irration