I have found for mine topomax(which comes with a host of side effects not even worth talking about) as a preventative. Imitrex is a MUST but if you can't take it you will have to find something else. I would def see a neuro and get more info on meds. Some people swear by magnesium supplements.

My triggers are bright light, heat, barometric pressure changes. I have not found eliminating food triggers to be of any help in MY case but everyone is different.