Is anyone else on Gilenya have side effects like EXTREME fatigue? cog fog that effects vision, and random tingling in legs and arms, and back and neck pain increase? I took a day off and felt better, but today I feel the same (no…). Gonna take it now. Maybe the symptoms were psychosomatic or the combo of the flare up I’ve been having and the heat on top of everything else? just don’t know. but that one day of functioning was sorta nice. ugh. It feels like its midnight but its not even close. stupid body.