Me again! Have you been diagnosed with cluster headache? Just to make sure we're on the same page, cluster headache is a completely separate condition from migraine. Here's an article about what makes clusters different:
https://migraine.com/living-migraine/cluster-headache-differences
Using high flow oxygen is the gold standard for treating cluster headache. This is a good resource about navigating treatment:
https://migraine.com/living-migraine/treatment-info-new-cluster-patient
Now, about your white spot -- have you had it checked since then? As you know, I'm not a doctor and can't weigh in on that. However, I do want to share that some people with migraine have reported lesions and other interesting findings on MRI scans. There's still a lot we don't know about that, though.
https://migraine.com/clinical/white-matter-brain-lesions
I hope some of that is useful! Take care. -Melissa, team member