Re: Help me talk myself through this
Hmm, neither one of those is typically known for lowering the seizure threshold although it is possible that in combination could have contributed. If it was just the one episode and he has an otherwise normal EEG then it is also possible that it was unrelated to his medications at the time.
If the stimulant is working well for him behaviorally, I think that continuing the trial would be fine. If it's anxiety related to the medications, it should get better over time as he acclimates. The stimulants are, as you probably know, short lived so you can also stop for a few days and see if this changes anything.