"i enjoyed evekeo.  it was great when it came to improving focus.  i also have shift work disorder so for me stimulants are great as they help me overcome the hump i hit every morning when i just want to go to bed and sleep all day.  my wife complained that i was getting really hard to live with compared to normal.  i knew i was more irritable than normal.  over the 5 months i took it i did feel like the level of irritabilty and arguementativeness was steadily increasing.  stopped taking when my wife told me i was starting to become unbearable.   i usually get 2 migraines a year but while on evekeo i had 3 in 5 months."