Follow-Up: I was on provigil for about 6months. During that time headaches and being sick to my stomach was a part of my daily life. Even my emotions seemed to be an uproar. Though I had been diagnosed with narcolepsy from Sept 1997. I t was a miss diagnoses and the Provigil was doing exactly the opposite of its intentions. Along with the above, I was falling asleep more frequently and my blood pressure had gone up dramatically. Since being off of it things have gone back to normal. I was correctly diagnosed with DSPS (delayed sleep phase syndrome) and use a light box. But I am glad to know that it does work for people. Will
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