Is there a common definition of "migraine" in use here? Many of the comments here describe tension headaches, cluster headaches, and any other kind of headache

Is there a common definition of "migraine" in use here? Many of the comments here describe tension headaches, cluster headaches, and any other kind of headache lacking a formal diagnosis as a 'migraine'. Many also self-medicate their self-diagnosis. Even the study itself is vague on the definition of 'migraine' other than stating the study was based on rumours of self-medication by self-diagnosed migraine sufferers. The article itself is paywalled, but I suspect subjects were recruited from a base of volunteers answering 'do you suffer from migraines' on a questionnaire. There is, in fact, a medical definition of what a migraine is. It excludes tension headaches, cluster headaches, anxiety-induced headaches, earaches, back and neck injuries (chronic or acute), and even post-concussion headaches.