I spent almost a year on Aimovig and had to go off it suddenly a month ago for insurance reasons. About three weeks after I was due for a dose (a dose I never got), I started having severe headaches on a daily basis. It's been going on for almost two weeks now. This was never normal for me, even before the Aimovig. I am wondering if this is some sort of withdrawal from not having Aimovig in my system anymore, and if so, how long it will last? Does anyone have experience with this?