Drinking in moderation doesn't seem to have any negative effects. I generally have a few drinks a day [whiskey and scotch], and as long as it's a moderate amount, it's ok.
However, if I overdo it [it's been known to happen], it really screws me up for at least a day after, sometimes two [typical hangover symptoms, but more severe]. The fatigue and weakness are the worst of it, it's not debilitating, but it's not fun.
My symptoms have been extremely minor since my initial attack 6 years ago [in which my left leg was completely paralyzed, and my right leg completely numb, both problems went away after a few weeks and some steroids], some strange tinglings and occasional weakness, some blurred vision.