Will I get sick if I eat my own blood?!

No , it's ok

A small amount of blood won't make you sick, but the stomach does object to large amounts of blood being ingested. Sucking blood from a wound is not the most hygienic thing to do though, as the mouth and saliva contain a lot of potentially nasty bacteria.

RN

i suck blood from my own cuts all the time and i feel just fine but if ur a weird emo kid drinking blood by the pint you'll probly get sick and i wish u would get sick

If you have germs in your mouth than yea probably

naw, but i don't know why you would do this, you should just get a tissue.