2 and half yr old boy,has been sick for 4 dayz.Vomit up 3 times the first day, high fever for 4 dayz. Rash on ears and cheeks darker,slight rash on torso,legs and feet.Crying alot, has sensitive eyes, sayz they burn.Had diarrhea for 2 days now has not had any bowel movement in 24 hours.Urine is slowing down as well.Hes been drinking alot of fluids and eating very little, but has been eating.Has a stuffy nose, breathing through mouth alot.Wasn t sleeping well, crying in pain.Been giving Tylenol and ibuprofen. What could this be? Should take him to ER or wait to see doctor Monday? Please help confused care taker.