Welcome aboard and congrats on hitting ketosis. If you haven't already found the Newbies forum, you might want to wander over there and read some of the sticky posts (stickies stay at the very top of the list for quick reference). There's one called Hot Links which is a collection of answers to the most frequently asked questions, including getting the head fuzzies and other carb withdrawal symptoms.

Here's a quick link to that sticky:

http://forum.lowcarber.org/showthre...&threadid=28939

Here's the link to the Newbie forum main page:
http://forum.lowcarber.org/forumdis...?s=&forumid=110