Planet13 - 3:53 am on Jan 3, 2012 (gmt 0)
Welcome to the forums, Frost_Angel:
Please do what martinacastro said and try to search for a unique string of text on your home page (or another page that used to rank well) and see if it ranks on page 1 or not.
Also, I would really, really suggest you get someone to look for any technical problems with your site. I know a couple of other webmasters who were SURE they had been penalized, only to realize later that it was a technical glitch. I've done that too...