Do you use generic or name brand? I used name brand when I first started taking it but my insurance won't cover it so I decided to try generic. I only take it during an attack or when I have to ride. I've noticed the last few times I took it I felt worse. When the car stopped it still felt like I was still moving & I felt like I was stumbling more than usual when I tried to walk. Anyone have a problem with it? I may have to try name brand again. Thanks for help!