Woke up this morning at 3am and my room was spinning at a 100mph. Freaked me the hell out, I thought I was having a stroke or something, didn't know wtf was going on. When it stopped after what probably was 20 seconds but felt like an eternity I did some googling and came to the conclusion it was vertigo. Also dropped by the company nurse today to make sure nothing else could be going on. Anybody ever have this happen to them? Sure as hell a scary experience the first time it happens!