I started getting headaches when I was 14, was diagnosed at 16, and have had episodes at least once a year every year since.  At age 25,  I started having exceptionally bad clusters that exhibited some measurable and substantial change very 5 years, i was diagnosed with cancer at age 43, and underwent a year of chemotherapy and radiation.  My body was really destroyed by the treatment, but you'll understand when I say that  I handled all of that without pain medication, and my biggest fear was that I would start a cluster - that I would not have been able to manage.  I went the entire year and for an additional year and a half afterwards without a single cluster.  I thought somehow the chemo had "cured" the headaches.  Unfortunately, two years ago, the clusters started again.  I started another cluster two weeks ago, and while it had a slow start, it's coming on with a vengeance.  It almost makes me wish for chemotherapy again if that would give me two and a half years of relief. Anyone else find any correlation between chemo and clusters?

It's difficult to offer any advice without having a history of the docs, treatments, etc. re. your Clusters. Are you seeing a doc who  has experience/skill in treating complex headche disorders?