Thanks for the reply. I think I'm going to low carb it for a little while to see if that helps. It usually does. The last time I had problems was when I was under a lot of stress and I was also indulging in a lot of energy drinks (although I've been having them since then with no problems). Wouldn't hurt me to drop the few pounds I've put on since the holidays anyways.
Just makes me wonder if something else is going on.