Has anybody had manic symptoms when taking Gabapentin? I just started this past week, and I'm only taking half the dose I'm supposed to because my pdoc was iffy about how I'd react to given the other meds I'm taking already and that made me want to start even slower. I'm so jittery and unfocused and my thoughts are racing around. I'm also fairly sleepy at the same time which is a bizarre feeling. My hands were shaking so bad, but that's lessening. I'm really hoping the rest is temporary too.