Hi Lizzy! Sorry about your migraines, unfortunately I can relate. I got botox for migraines one time last year. The dr told me that normally there is increased pain before it kicks in. I had an allergic reaction to the first injection I got which really bummed me out because it helped the ice pick type migraines I was having. I still had my daily headaches, but I could deal with that since they are normal for me.
Hope you can get some relief soon!
Nanc