Site horribly slow, just suddenly

Hi, my site has, really just today, started loading to a near dead crawl, and this is front and back-end. The back end has been a little slow the past few days, but nothing really bad, just assumed it was my service at home, but now, the entire site is nearly locked up and barely loading.
I’m looking for any and all suggestions as I haven’t updated, added or changed anything with the site in terms of widgets or plugins short of adding a RSS feed widget last week.
Oh, the site in question is Geekasms.com