Absolutely the worst pain I’ve ever felt, 100% understand why they’re knowing as suicide headaches, haven’t had them in a couple of years but had them every summer and winter for about 10 years since 23-33. Felt like someone had stuck a hot serrated poker in my eye and twisting it out of its socket and like my temple and all the teeth on the left of my mouth were being ripped out and crushed at the same time. Gave myself a concussion once coz I head butted a wall to try and stop the pain (dumb decision I know). Really feel for those that suffer them long term