Yes!! In fact I'm having it now. I feel like I'm not really "grounded" if that makes any sense. And yes, it's much worse outside. I truly believe only another MSer can understand what we're talking about. Wish I could find a good Neuro that actually has MS (not that I'd wish it on anyone) so they'd know what I'm describing.
Oh, and welcome to NeuroTalk!

Sorry you're having problems with vertigo but you'll find lots of support here.