When I'm having a migraine, there is NO WAY I can move. If I do, I'll probably vomit.

I cannot move my head, let alone get up. I can't even move my eyes much -- just have to stay in a dark, cool room, with no noise and a cool cloth on my eyes too. Can't move until it subsides, however long that may be. Could be 24 hrs, or 2 days - who knows. Thankfully, I don't have them very often.
But getting up ? No way.