Episodes of Abdominal and Chest Pain

I have been having episodes of abdominal/chest pain and doctors have yet to figure out what’s wrong. This year, I’ve have 6 episodes. They start between 11:30pm and 3:30 am. 5 times it has woken me from sleep. 3 of the episodes included vomiting. Sometimes the vomiting helps relieve the pain a little bit. Episodes last 1-3 hours. Moving makes the pain worse. It’s a severe pain, mainly in the left ribs, under the breast. Sometimes the pain is also on the right side or spreads up to my chest or down to my belly. Blood work, ekgs, and chest X-ray have all been normal. Any ideas of what it might be/what I should have my doctors look into?