Additional Terms


How many days in the last 3 months did you have a headache? (If a headache lasted more than 1 day, count each day.)


The average length of time that one migraine headache lasted from onset to resolution. (If a migraine started on Monday at 1pm and lasted until 1pm Tuesday, you would answer 24 hours. If your migraine headaches last for different amounts of time then please give the average length of time for the duration.

Pain Scale

On a scale of 0 – 10, on average how painful were these headaches? (where 0 = no pain at all and 10 = pain as bad as it can be.) For a better understanding of how to understand Pain Scale please see a full explanation here