chronic fatigue syndrome
"I started taking 200 mg of Modafinil a couple weeks ago for debilitating chronic fatigue. It has definitely had a positive effect, although a subtle one. I am more awake, better able to focus and it is easier to overcome the inertia required to start something. I haven't suddenly become energetic or highly productive like others, but there is a subtle difference. Unfortunately it has seriously impacted my sleep. My brain stays awake most of the night even though my body is exhausted. Additionally it gives me a pressure headache behind my eyes, and overall just makes me feel a little strange."