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Hey, look. Please go and talk to your loved and trusted ones about this, and go see a pro. Simply that is progress, and it is the kind that'll keep turning into more progress. Just make a few phone calls and get yourself into that office. Don't fret about choosing the right doctor etc. It's like startups: release your MVP as fast as you can, and then tweak it later iteratively.
Thanks :-) I went to see a doctor a few days ago, they gave me some medication that literally took me out all night and all day. Won't be taking it ever again, but it helped stop the thoughts. Only a temporary solution, I'll be getting some help! Thanks for your concern - it actually does mean something to read your comment :-)
Meanwhile, try reading this: http://www.amazon.com/Feeling-Good-The-Mood-Therapy/dp/03808... I haven't really read it but I've been exposed to the CBT methodology that it's based on (see my other comments on this thread) and it works.
Get help soon, and good luck! :)