Is it common to feel sick taking a couple days off of Vyvanse?? Is this common?? Nothing crippling, slept a TON the first day, now, I can't sleep anymore, feel like I have a cold and some light depression. Does this happen?? I've only been on for about a month. I wasn't expecting any real withdrawal symptoms, I also have no had any caffeine in the last two days either. I just wanted to take a little "break" because I wanted some more rest. Is there a better way to do this? Or should I just not lol, apologies if these are dumb questions.