Do you not think that taking doses of literal amphetamines on a daily basis might be more associated with your complaints than consuming caffeine?
But speaking to your point:
> This systematic review and meta-analysis based on 19 observational studies with more than 3.9 million participants suggested that there was no statistically significant association between ADHD medications and the risk of cardiovascular events among children and adolescents, young and middle-aged adults, or older adults.