insomnia
"Dr put me on 10mg. I have had major sleep problems for years and suffer migraines with aura. For days I don't sleep at all. 10mg did nothing for me. Bumped it to 20mg and while I don't feel sleepy I do eventually fall asleep if I lay there. Usually 3 or 4 am. Since I never sleep this was a good sign. Also I woke about 730am feeling great. Wide awake, not drowsy or tired. No headache which is also not my norm as I always wake up with a headache if I sleep. This has gone on for 14 days now.  While its not perfect, I feel so good all day it's the best thing to happen to me in 7 years. I hope it continues."