Not a doctor but someone who was in a similar boat but to me it sounds like that dosage might have been too high, or you weren't taking it regularly enough. I found that once I was able to negotiate with my doctor to a lower prescription I was able to mostly get rid of the negatives of ADHD medicines. I found in general via a lot of other friends who were prescribed in the 90s/00s that their dosages were crazy high to start with as well.