The problem lies in the drugs. Even though you haven't taken them in a while, Riddlin or however it's spelled is a drug that affects the nervous system and it's not entirely known how it truely works(per AOPA's website). I had three students who had an issue with getting a medical because their mom's put them on the crap due to the fact that they were normal 10 year old boys. As a result, I lost two good students and the other one took nearly 10 months to get a medical. To get the ADHD stuff cleared he had to go to a couple different doctors and do a ton of testing. It cost a ton of money but his family had it.

Spend the $30 on an AOPA membership and use their medical services. They will help you with the right course of action but know it may take a while to get your medical.