I did the diamond headache clinic way back in 1999. Didn’t do anything. Tried an maoi inhibitor which didn’t do anything. Tried a few new drugs back in 2016 after new diagnosis but didn’t help. Live with it but main issue I have now and had bad for two years is abdominal pain which like headaches nothing much works. The headaches I figured how to live with, stomach pain haven’t. Daily Chronic pain is the worse thing medically ever.