I did this. It actually helped me but everyone else was convinced that it didn't at the time. I was feeling very numb on the meds and I knew that I wanted to feel something rather than nothing. So for a while I was a total mess and that's probably why everyone was so worried. I did end up in a clinic for a little bit too. It was one of the scariest experiences of my life and I ended up checking out because they were so pushy about the meds. Here's the positive part: being in those situations gave me the strength to want to learn how to deal with my issues without numbing. It's taken me a long time but I started to change and grow and learn about me and how I function without numbing and it has enabled me to live a more fulfilling (but still sometimes difficult) life. As an aside, I did end up going back on an ADHD med eventually but this series of events gave me a greater understanding of what different meds feel like in my body and what the implications (in the context of my life) of taking those meds are. I hope this helps a little..