Hi - I'm a new member here and have been taking Nuvigil on an off for about 6 months for Bipolar Disorder. For the first couple weeks it always increases my mood but then it turns on me and I feel horrible and restless. I admit I have overtaken this medication from time to time but this time I'm experiencing a completely different side effect. Hard to explain but basically just feel icky, restless and mind going a hundred miles an hour. Just wondering if anyone else has experienced these side effects with Nuvigil? Any feedback is appreciated.