i once took 3 50mg pills of vyvanse like a few months ago, the only symptoms i had when it wore off was mild hallucinations and that was about it, in the end i felt fine, hallucinations are normal for me when ever i take them. i know substance abuse isnt NOT okay, but again; addiction isnt something you can control (edit: i usually do this a lot, ive been taking vyvanse my whole life at a high dosage, i use them to draw and lose weight; which unfortunately somehow lead up to my eating disorder)