I used to have migraines. Then I learned how to relax the muscles in my neck (with meditation). Now I can cure my migraines in about 5 mins. I told my doctor about it. She said yep, nowadays they treat migraines with botox injected into the tensed muscles. Like much of medicine, it treats the symptom rather than the cause. I believe that the root cause of most migraines is emotional tension.
I wish you peace and freedom from anxiety. The bright lights don't cause your migraines. You think they do, so you start to stress out. Then your body's automatic response to stress causes the migraines. Multiple-chemical-sensitivity is the same. I had that, too and cured myself with knowledge and stress reduction techniques. This knowledge is the cure.
I think you're mistaking tension headaches for migraines. As a lifelong migraine sufferer, I can assure you they're different, and while tense neck muscles or stress can be a trigger for migraine, they're not the reason why I have them.
I wish you peace and freedom from anxiety. The bright lights don't cause your migraines. You think they do, so you start to stress out. Then your body's automatic response to stress causes the migraines. Multiple-chemical-sensitivity is the same. I had that, too and cured myself with knowledge and stress reduction techniques. This knowledge is the cure.