Man I feel sorry for you because I have fought clusters headaces for the last 15 years.after 10 years of local doctors I went to the Cleveland clinic they gave me a shot of Imitrex that took the pain away in 2 min. You can give yourself the shot it comes in a little pin needle.That and oxygen take the headace away. Oxygen can take most away but not always, I sleep with a oxygen machine just for the 4-6 weeks they last. I guess they hit people in different pain levels. I never thought I was a sissy but when they are bad they can damn near put me down on the ground.Makes your one eye water, nose plug up and a ice pick in the eye feeling they last 4-6 weeks. I,m 50 years old and didin't get them for the last 3 years and thought they was gone but got them right around Christmas. I wish I knew about them shots a long time ago.Migraines are a walk in the park compare to clusters. Good luck