The first time I used modafinil I got really bad headaches, going right from the temple above my eyes all the way over the top to the back. I've read that this is quite common. I made sure to drink enough and eat enough so I don't think it's that but it could be other interactions. I'm currently cycling various noots to see what it could be, as well as playing around with overall daily mod dosage / splitting into smaller dosages throughout the day. I've also read about using Choline to reduce the headaches. Anyone else have this issue? How did you resolve it?