I've heard a few scary stories from people about long-term adderall usage weakening their heart muscle but they are/were not particularly healthy individuals
I have monthly check ups. They take my pulse, blood pressure, and weight. I've noticed improvements when I changed my diet (the nurse said "wow" when she checked my pressure).
I had an EKG 10 years ago, when I switched to this Dr.
I have an (almost) annual physical.
I'm not really sure which of those is enough to give you comfort - more than anything, I wanted to give a counter story to the "scary stories"