Re: why was the room spinning
Usually this is something known as BPPV, which is just medical lingo for benign vertigo. There are balance centers in your ears that can get messed up by a variety of things; a bump to the head, virus, etc. When the vertigo comes as a result of changing head position, they typically say that it may resolve in time. There are head exercises called Epley maneuvers in which they have you turn your head in various directions. This may likely trigger the vertigo, but something to do with repositioning the "balance rocks" or some such thing, ultimately helps the problem. I recommend the Inner Ear Disorders Board, they have sticky posts there you can read all about it.