I have been having this stomach ache for over two years after every 3 to 4 months. It stays in epigastric area and I vommit out everything when i have it. Otherwise I feel completely healthy, with no stomach problems or allergies. I was taken to ER many times. I got tested for celiec antibody, it was negative I got CT scan and ultrasound advised, show swelling of tail of pancreas which according to the doctor was not a big problem My amylase levels were high during the pain which lasted for 8 to 12 hours. Lipase levels were never high during pain. One of the doctor named it idiopathic pancreatitis but another said it isn't pancreatitis. They asked me to get an endoscopy done which i didn't go for. Lately, i was advised zopent medicine with brufen during pain, it was the only medicine that decreased the pain intenstity to minimal. Its still there and there is no definite diagnosis or treatment so far