I have never heard that thyroid medications can magnify your migraines, if this is true, I need to find out. Started taking levothroid 150mcg in March. In june and july I didn't have a migraine. Then they started back up in august and this month I have had a headache almost everyday requiring a shot to break the cycle. Also do you or anyone on the thyroid group know of a migraine support group on the internet. Thank you very much, Sandra hypo and migraines are killing me