i thought that was an anxiety med, not a headache med, i was prescribed a headache med with codeine, clonozapam and amitryptline also . I was told to take the amitriptyline before bed because of restless legs, and not being able to sleep.
It shouldn't be taking this long to work. Worked the first time i took it but i stopped because i don't want to be on meds and want my condition, whatever it is, to be cured.
I would advice a good diet and vitamin regimin, just do a search on here and this board for some good things to take like calcium , magnesium, arginine, b 2, etc