Hi, I suffer from very severe MCS and it started off with alcohol. At first I would have right upper quaderant pain for a few hours each time I drank & it got worse, it would last longer each time until it stuck with me and turned into full blown MCS. Since MCS & Chronic-Fatigue-Syndrome are related, so they say, I would be very careful. If your body let's you know it has a problem with anything you better listen. Hopefully you make a full recovery from Chronic-Fatigue-Syndrome & MCS is never a problem for you, good luck. Mario