Disability certificate for migraine? I suffer from vascular headache / migraine from sitting under ac. Already tried all the medicines. They work temporarily and cause many side effects. I am unable to sit and work in it companies. They only consider physical disability and will not consider mental disability. Once headache comes, I am disabled in office. From where can I get disability certificate for migraine? Example: persons suffering from schizophrenia is getting disability certificate. Why not for migraine?