look - I promise I'm not denying your lived experience here - but I am a pharmaceutical chemist in real life, and I'm telling you that lisdexamfetamine (Vyvanse) is only active because it is metabolized to d-amphetamine, the primary active in Adderall XR.

the differences in your experiences across these two drugs could be due to a dosing equivalency issue (sounds like you might have been dosed a bit too high on the Adderall), or a bad reaction to the l-amphetamine that makes up 25% of the Adderall XR formulation. in either case, there are products out there that can save you a lot of money on the Vyvanse script if you're willing to pursue it a little further - see the comment below recommending Dexedrine ER