I was using a moderate, prescribed dose of Vyvanse/Adderall, I've always basically always had ADHD type symptoms and it was never a huge issue, but I never took any pills until I was an adult in an attempt to focus and get promoted at my big 4 job.

It ended up backfiring as I had a manic/psychotic episode, which led to highly erratic behavior that led to me losing my job, burning all my career bridges, etc. Then I also got diagnosed with heart failure. Almost ruined my life in every sense.

Since then I'm just totally sober, off all meds, and fortunately my brain and heart have both fully recovered. Were there other factors that triggered the episode, sure, did I probably have some predisposition to these issues, sure, but I highly suspect that the ADHD meds played a major role in triggering it all and I would highly caution people against them.