My husband has been getting migraines. Everyday single day he has a migraine that comes over him in the morning and evening. When it comes in the evening, it lasts all night long. He takes migraine medication but it isn’t helping at all. Told him to hydrate and he has been. Also said he needs to go to the chiropractor but haven’t had time yet. He doesn’t feel like it has something to do with that though because he usually goes regularly. Worried that it could be something serious. What do you guys think could be causing them?? He said the last time he had a bad spell with migraines was 2 years ago.