Thanks so much for your reply. I've had lifelong migraines since the age of 6; and they're definitely hereditary---both parents (and several extended family members) had them. Your input about Humira, however, is good "food for thought". Since so many different things can trigger migraines, Humira could possibly be just one more trigger. I'll have to pay closer attention and see if there's any pattern.
Are your headaches worse during the first few days after your Humira injection? Or, are they fairly continuous?