Hi, my 4 year old has a stomach virus, she began with fever on Friday and started throwing up that night and complaint of stomach ache, I called her doctor and she said that it was a stomach virus.  She vomited Saturday at 2 am and vomited some bold, the doc said she must have ruptured a capillary, she continues with fever and stomach pain, now she complains of bilateral knee pain, today is Monday and she still has fever 102.4F, she is no longer vomiting though.  Could this be appendicitis?
Hi, Welcome to Chat Doctor forum.  It appears to be the viral diarrhea, super infected with the bacteria. When ever there is continuous vomiting they there will be vomiting of blood, due to the rupture of the capillaries in the stomach.  I advise you to consult a pediatrician for diagnosis and treatment.  I usually prescribe to my patient with such symptoms ofloxacin, dicyclomine HY Chat Doctor.  Furthermore, I advise you to give him semisolid, or liquid diet. O.R.S, and coconut water is a preferred supplement.  Wishing for a quick and complete recovery. Thank you.