I've been having some really strange emotional highs and lows recently and all attempts to pinpoint the cause of it have come up with nothing. I stopped drinking coke during the work day about a week and a half ago because it was ruining my ability to focus later on in the day but I don't think that's the culprit. I had only been having a coke once a day at most and I don't recall having any kind of problems (other than with my teeth) when I stopped drinking it a couple months ago.
It's really been a daily coin flip if I'm going to have a good day or not. I'll feel great all day but have crappy luck and things won't ever go my way. Then I'll have a day where everything goes right but I feel self-concious and crappy all day. I can't come up with any kind of reasoning behind it.

I hate things that defy all the logic I throw at it.