Had this discussion with my coworker who's been dx'ed for 5-6 years now (she figures she's had MS for 8 years approx., couple years younger than me, very different symptoms).

She said in the 5 years she's been diagnosed, she's relapsed each winter. This winter, it was ON (lost vision in 1 eye completely... still struggling with it) and she had vertigo horribly (which her neurologist dismissed as an MS symptom... WHAT?!).

Anyways, I felt cruddy all winter but no 'relapse' for me since last May when I was going through recent dx and house selling stress (horror).

I'm just wondering if other find their relapses also follow seasons, or if they're random/related to other factors.