I think I may have really messed up. I'm pretty scared. About 17 days ago I found a bottle of vyvanse in a purse I bought from goodwill. I knew it would suppress my appetite and give me energy and there were only 21 pills in the bottle. So I've been taking them. I'm horrified that I'm having to confess such a stupid thing to do.. But it's done. I've taken 17 pills at 50 mg each for 17 days. From day one I felt heart palpitations and major energy, decreased appetite etc. I didn't love the effects other then decreased appetite. I've lost 5 pounds. But I've reached a point where it's begun to concern me because I know I need to eat more, and I don't like the way it's made my heart feel. I've also had shortness of breath. So today, after 17 days I've stopped taking the pills. I'm still feeling that shortness of breath. Heart isn't racing at all, beating fairly normal but I'm still not catching my breath with ease. Have a caused congestive heart failure? Or am I just needing to let my system return to normal? I'm really afraid to go to the hospital and confess what I've done. I should absolutely know better. But my thinking was... They give this to kids and it's only for a couple weeks. So stupidly, I gave in. Please advise what I should do. Thank you in advance.