I had severe upper abdominal pain as well as back pain - between shoulder blades last night. It woke me up and did not get better with changing positions, pacing, sitting, lying down. In addition, I was nauseous. It has gotten slightly better with time - now 10 hours have passed since the onset, but it is still there. I have not eaten since this occurred. I did have both cheese and ice cream last night - so a good portion of dairy. The pain came on suddenly, but for the last two days I ve been slightly nauseous and my joints have hurt. Looking for possibilities with those symptoms.