I thought i got food poisoning, but it has been 4 days and it has not gone away, my stomach is bloated and i had violate blood in my stool 2 days ago?

Gastroenteritis.: This sounds like acute gastroenteritis - nausea, vomiting, diarrhea, abdominal pains, fever, chills and sweats are all possible components of this. Could be viral or food-borne, perhaps something you ate four or five days ago that may have been undercooked or mishandled. Typically lasts 3-5 days. If it gets much worse, or if it lasts longer than that, see a doctor.