Thanks for sharing your story. It's especially interesting because for most of us, stuttering starts from ages 2-4, rather than age 10. If you don't mind me asking, does the ritalin affect your stuttering one way or the other now? I was also on and off ADD meds from adolescence through my 20s, but didn't find it had a major effect on my stuttering. (I stopped them because they made me feel anxious and antisocial.) It's not well known how these meds interact with stuttering, but some case studies ([article](https://www.sciencedirect.com/science/article/pii/S0094730X03000214?casa_token=zgVm219rEb8AAAAA:-VF3BA6ZZEyw4v8EoGTBLbk_dZfEhthWq9tBKMZGXEIbe3CBCzlP4F3ASV49OUckgXwnNz4Jhvs#aep-section-id13)) suggest that ADD meds that are stimulants, including ritalin, might increase stuttering risk. This makes some sense considering that the best medications for reducing stuttering (which are still not very good) block dopamine activity, while stimulants increase dopamine activity.