Oh no, I'm not saying you're at any extra risk for Parkinson's. I'm just saying the nature of your stuttering relapse is very similar to some recovered stutters who happen to get Parkinson's later on. I wish I could give you better information about what you can expect, but your situation is different from these Parkinson's patients because Parkinson's is permanent and degenerative, while this medication was only temporary. It's great that your stutter got much better. Hopefully you get back to 100% effortless fluency.