I've taken clonazepam since 1987. From time to time I go off it in the hopes that it'll work better when I go back on. When I first started taking it, I could feel the effect right away. It felt so good, giving me good feelings and confidence. Now I feel nothing when I take it, but my pdoc wants me to stay on it. When I've gone off it, I have headaches. That's it, just headaches.