Hmm... my pop is highly allergic to Wheat & Gluten... cant’t drink beer or whiskey... Whiskey has a very low gluten content because of the distill process. But can still cause an issue if one is extremely sensitive. I’ve contacted 3 distilleries hoping to find a 100% gluten free whiskey for him, but no luck. Since beginning my whiskey journey, I’ve had very little beer because like you, it makes me a little sluggish. I can drink a good amount of Whiskey with no hangover, no bloating, and no headaches. I actually feel better overall, having some Whiskey everyday.