My husband had cluster headaches seasonally typically spring & fall for 6-8 weeks from age 22 to 57. He & I were involved with the "Cluster Busters" group which was helpful. He used oxygen & meds. Unfortunately, he was in a cluster headache cycle & died of a sudden heart attack in 2011. My heart goes out to cluster headache victims & their families. Cluster Busters has annual meetings & does advocacy work in Washington DC & with pharmaceutical companies. 🙏