Things are a bit different when you have multiple sclerosis. Weird stuff happens (like the sensation of beetles crawling on the scalp, cold raindrops on your forearms, vertigo, numbness, etc.). These are typically minor neurological misfirings as your body attacks its own nervous system. Fortunately, your body also usually repairs the damage to the myelin sheathe, so these same symptoms will usually disappear within a few days. If I went to the doctor every time something happens, I'd be living there - and broke.
My neuro doc still hasn't called me back even though I explained to the nurse in detail. Dramamine didn't work. I've still got the whirlies. After being off of the vaping for 24 hours, I saw no difference other than a lot of dirty ashtrays *yuck*. I just started vaping again because it doesn't seem to have anything to do with it.