A buddy of mine has this Cluster headache shit for years now. Stoped drinking, wont go out anymore and is a total downer. He had his attacks back when we were still hanging out with him. Started smashing his head, throwing up and blasting hot and cold water in his face while screaming. Then all of a sudden he comes back like nothing happened. Some attacks go for hours and his Doc´s says they cant do much for him. What is up with that ?