I have it too! I noticed it after I turned 30. Ususally it happens after I drink either a wine cooler or this evening it happened after drinking vodka. The pain is near my diaphragm and radiates to my back and shoulders. The pain lasts about 20 minutes and I get flushed in the face. This problem does not happen with beer. However, if I drink beer or wine my skin gets unbearably soar 22-24 hours later and lasts about 2 days. Wierd and annoying and kinda scarey. Some have suggested an allergy or lack of an enzyme. I want to see my doc. for an answer.

This happens to me a lot also...but the weirdest thing is I get the stomach pain..and I also get a slight pain in my shoulder as well.it like aches and its ONLY with mix drinks and I think i noticed its more with cheap vodka mix drinks..bc sometimes i can drink mix drinks and be fine... but others i get this pain and i have to wait like 15 min and i will be fine, and i usually just switch to beer to be safe....so weird. I am thinking that cheap vodka has something to do with it. It actually happened a week ago and i just had to sit for like 15 min and relax..i thought it was just me