How long have you been on it? When I first went on it, I got very weak in the legs after a dose. It was hard to walk, I was all staggery. After a couple of months, this had really toned down. Maybe I would just have 10 minutes or so of weakness in my legs but I didn't stagger anymore. This med stopped working for me after a while, and the lower limb thing was the last effect to remain. Buspar never affected my ability to talk, though.