Well, the side fx you describe are temporary and normal. Perhaps request a small dose of Ativan or a similar benzo to take for another week or two until this calms down?
Things were a bit more intense when i tried Celexa years ago. I honestly cannot believe I made it those 6 weeks on it. First off, Ativan did not calm me down. Second, I was more depressed, angry, insomnia, moody...not to mention the usual AD side fx that werent easing up. I have always had abnormal experiences with ADs. That said, I have since begun seeing a new psych and was diagnosed Bipolar Type 2 (the kess severe kind)...not just because of my reactions from ADs, but that certainly was a clue in the diagnostic.
Doesn't sound like the rollercoaster ride is nearly as intense in your case so just try to stick with it. :)