Throwing up mucus, diarrhea & only mucus comes out, blood when wiping not every time, can't hold down water for the past 24 hours, stomach pain, fever?

Common things: first: 9 times out of 10, these symptoms occur with food poisoning or viral gastroenteritis. We worry about internal bleeding associated with vomiting, but your description of blood with wiping sounds as if it is more on the tissue paper than in the stool and that it looks like red blood (not black/tarry digested blood from stomach). Seek urgent care if dehydrated (dizzy, decreased urine, thirst