Combinations - Why do I always vomit when I smoke weed and drink beer at the same time?

[jgarlopa]

I have always wondered about this. Does either substance have a certain chemical property that causes me to do this when I mix the two together? It's strange, because I know many people who do this and many who don't. My favourite beer is Chimay, either red or white, and I can't even have one bottle while smoking weed at the same time without throwing up at least once, but sometimes more. Initially, it wasn't such a big deal, but then I once threw up five times in one night and decided to call it quits; I now choose either one or the other. It's really difficult to have to make such a decision, but I have no choice. Please help