I have been doing the stationary bike for about 6 months now in the evening. I am not sure it helped for any symptoms but sure keeps me sane and as a matter of fact that is the only thing which makes me human. For some reason I feel some what better in the evening and after I do 20 mins I start feeling even better and for me the effect is immediate with headaches and fatigue (goes down). I can sure eat better since I get good appetite.

It is so bizarre when I have headache/fatigue I am supposed to rest (which makes my condition even worse by lying down) and exercising for me definitely does not aggravate symptoms rather tone down the symptoms. If I do the exercise in the morning then the rest of the day I am completely wiped out. Weird! Moderate/light exercise is something we all know is beneficial regardless it helps with your symptoms. Lately I am even thinking to push it with some light weights.