I started having migranes on a consistant basis five months ago. I have been to a neurologist who wasn't very helpful. I had a CT scan and blood work that both came back normal. He mentioned something about putting me on preventative medicine to try and stop them but I'm wondering:

Is it possible for me to be getting side effects from my BP meds after being on them for a year? I don't think they would just pop up like that after so long but my boyfriend thought it would be worth asking.