Hi, my son has been diagnosed with this after 2 hospital admissions. He has had tummy pain since last Wednesday which came on very suddenly. He has been off school since. Has anyone else experience this? I'm looking for other solutions to giving paracetamol and ibuprofen as they do not take the pain away and I have read this can last for weeks. My concern is he's 11 and already missed a week of school. Any advice please? Should I take him back to the gp?