Had one more the day after I posted. I recently added Green tea capsules to my vitamin regimen and I'm wondering if maybe this has anything to do with it? I realize that green tea itself has quite a bit of caffeine but I don't know if the supplements themselves do or not.. I drink coffee in the morning and then usually an energy drink in the afternoon and I wonder if there is caffeine in the green tea then maybe it is just too much for me. I've only been taking it for about a week now and that's when this all started. Curious.. I'll take it for a few more days and see what happens.