MG,
Welcome.I am PPMS, in a chair, but was dizzy and stuff before I got here after 16 or so years. Everyone is way different from each other, so never judge yourself by other's voyage. I do Amantadine 2x a day - morning and after my nap (don't we have a member by that name? AMN?) but don't have sleep issues (10pm-4,5am) when I have to use bathroom. I take Oxybutin at bedtime to help me not have to. In AM take Vesicare, another help for Urine, having to pee syndrome. I take an Amantdine also. Tried Provigil, did not help at all.