adhd
"-- Initial ramp up weeks made me sleepy and very "cloudy". Good luck if you manage a team at work or have a detailed oriented job.
-- The "best" period lasted for a couple of months. Sleeping was normal and I felt pretty "clear-headed". However, it made my emotions "neutral" to almost everything. Like a cardboard cut-out of the real me. No laughing at jokes. No "natural" sense of urgency when the situation called for one. 
-- Then the side-effects really kicked in. I would get dizzy when standing up. Then dizzy just sitting up in bed. I recall I read something about it can mess with your blood pressure. The "gray cardboard cutout" feeling got much stronger, plus I could not easily carry on a conversation during meetings."