Sometimes, after I've had a couple drinks, I get a dull ache right in the Solar Plexus area. It can get fairly intense (5-6 on a scale of 1-10). It goes away after 20 minutes or so, and then I'm fine for the rest of the night. I don't think it's anything serious, but I'm curious what the cause could be? Could it just be gas?

Thanks for the input