I started adding the Y to my EC this week. So I'm doing YC in the morning (2 hours before breakfast), then EC 3 times later in the day. Thats adding up to 800mg caffeine, plus I'm drinking at least 20oz diet mtn dew (yesterday i had 2). This is adding up to 1+ gram of caffeine a day. Yesterday I was feeling a little whacked out in the middle of the day, but I slept ok. Are there other negative effects to consuming this much caffeine on a daily basis? I have a feeling I'm going to have a wicked withdrawl when I stop using the stack, oh well.