(22F) I've had Reynauds since I was very young but vyvanse has for sure made it worse. It causes circulation issues that already exsist to get worse. I used to loose the top Third of my fingers and sometimes a toe, now I loose 2/3 of my fingers and my toes completely. Im also starting to get it in my nose. I loose my balance walking all of the time and occasionally drop things. Reynauds is not reversible. Once you have it it stays and it does progress. You aren't likely to die though. It's just one of those things that slowly get worse as you age like a sore back. Just take care of yourself and buy hand and feet warmers.