I was given this drug to help with my daily headaches and migraines. I took 5mg at bedtime and it seems to work because it made me relax so that I did not wake with a headache. The 5mg seemed to keep me awake. I now take 1/2 a pill each night at bedtime and that seemed to work for a while and now I seem to be awake all night with the lower dose. Have you ever heard of this and can you give me any suggestions?