I agree with the previous poster. You need to give your self more time coming off the fast. My last 10 day I ate one piece of pizza 4 days off (I broke properly until then) and had the worst cast of heartburn ALL night long. You want to have fun in Vegas, give your body at least 1 day off for every four days you MC'd. Just my opinion though:-)And have fun! I didn't have a bad reaction to having a couple beers a few days off, but it did seem to affect me more strongly.