My 9 year old boy has been vomiting with stomach pain for just over a day. Concerned it may be more than a stomach flu , perhaps appendicitis?... Temperature from normal to 99. He says pain is like an ache, cramp , not sharp or stabbing. He stopped vomiting, nothing today but he s also not eaten. A couple normal bowel movements. No stomach swelling. Doesn t hurt more on the right side, just everywhere. I, his dad, has IBS, so I m quite used to the pain that accompanies it. My ex wife is wondering if she should rush him to emergency.