@Dana129 I wish you didn't worry so much. My chronic cluster headaches began without warning. Three every night, all kip 10s. When I saw the videos, I was in auch a state of denial 'not me'. Well it was me that accidentally shoved my head through the wall, bruised my body terribly but didn't notice till the next day etc. I had the 'fear' of attacks only briefly because they were coming & I had nothing to stop them back then, fear soon became pointless. Look at me now, pain free sleeping through most nights. I still have Complex Chronic PTSD (unrelated to cluster headaches) and the treatment is helping that too. See? Hope is all over this forum!
Edited to add: If they ever return, I know how to stop them.