6 year old son, strange severe stomach pain
My son has been having severe stomach pain (in his mid to upper abdomen only), off and on for 9 days now. The pain is sharp/stabbing and can last for 2-6 hours at a time, then it goes away and he's fine. All blood work, urine work, X-rays and CT scan were normal. At first he vomited some during the first 4-5 days, but he does not vomit now. He has never had a fever or diahreah during this time. His pain usually shows up around 6 PM and can last through the night, but he is normal during the day. His physician and ER Docs thinks it some viral bug he has. Nothing gives him comfort when the pain begins. He is not having very good or that many bowel movements either, although he has been on a bland diet. Any thoughts?