Sorry for the delay, I didn't get the notifications I expected. I'll figure it out.
Anywho, the 10-20 minutes is the peak of the attack, the portion of absolute misery that redefined my understanding of pain. All of my attacks have happened in the afternoon/evening, and I had the shadow on and off for several hours before things escalated into an attack. Looking back through my notes, I'd say there's shadow with more modest pain levels for a few hours, then the climax of the attack lasts 20-30 minutes.
I have treated them with sumatriptan pills. Obviously that's too slow for these attacks, but I didn't really know what I was doing at that point and hoped it would at least quell additional attacks for some period of time. I have since met with my neurologist who agreed they were cluster headaches, and I got sumatriptan auto-injectors to help going forward. We also discussed the possibility of trying emgality, but haven't started that process yet.
In the meantime, I also went all in on the anti-inflammatory regimen. My hydroxy 25 was already 63 ng/mL because I've been taking D3 for a while, but I added the co-factors and loaded up the D3 for a bit and quickly crossed 80 ng/mL. Since I hit that level, I haven't had a single cluster. That's only 11 days, but the prior 4 clusters were getting much closer together in timing, so that feels like a potential win.
I have an appointment with Jefferson Headache Center next week (was already on the books for migraines), and I'll consider getting oxygen and see what they think about the whole situation.