"i&#039;ve started taking vyvanse about a year ago and for the first six months it was fantastic, i could concentrate and my grades were stellar. i was noticing some depression and random bouts of anger, but i just shrugged it off because it had been a rough school year. however, around september 2010 i ran out and the doctor couldn&#039;t see me until december (i know, it&#039;s crazy). of course, i couldn&#039;t concentrate as well but my mood improved considerably, i was actually happy. i started taking it again in january and on the second day, i saw an ex-girlfriend that i still really liked and i almost broke down in tears. the drug does it&#039;s job, but for my personal experience it has played with my emotions. "