"i am a student who has used vyvanse for the last few years. i am currently taking 40mg-50mg. when i first tried it, a couple side effects were annoying but it didnt last that long. when i was in high school, most of the day i felt like doing my work and getting stuff done, and it made me see the positive in things. and  in college when i take it, especially on my days off, i get a lot of work done. i am not a very talkative person, but it made me feel like having nice conversations with people. in mid day, i am in a great mood, but sometimes it goes away every now and then. i dont feel like eating almost all day, but its smart to eat breakfast before hand, and then dinner. i do have a small crash at the end of the day but it&#039;s worth it."