So, day three of the colon cleanse and I am not even fasting yet. But it is day three of a raw (except that first day I had two non-raw items) diet. I thought at first this headache was caffeine related, but then I realized it couldn’t be because I don’t drink all that much caffeine. And just now it came to me – sugar. ahhhh. That sucks. And is good to know. Simultaneously.