I just started Batch's D3 Regimen yesterday, and I've gone from 3-4 CH/day to one very minor one this morning that was easily quelled with a Zomig 5mg, so an auspicious beginning!
A bit of background. I'm a 46 year old man, and have been getting CHs since 2007. My CHs have been episodic rather than chronic, until about August of 2014. From October 2014 until August of this year, my CHs have, for the most-part been largely controllable with verapamil and Zomig. However, since August of this year, I've been finding the verapamil dosage of 6x120mg (2 in the morning, 2 at mid-day, 2 in the evening) to be robbing me of my vitality in every way. It makes me insanely tired, and unable to engage in any meaningful exercise, so I stopped taking it. Without fail, I started getting CH every day, and sometimes 3 in a day, since early September. In the last week, I started getting 3-4 in a day, so I resumed the verapamil, but yesterday, something happened that was the straw that broke the camel's back.
I was at the hospital yesterday afternoon after getting a force 10 (I was already using a 1-10 scale for my headaches before I ever heard about the other guy's 1-10 scale!) CH at around noon yesterday. Not only was it the worst CH I'd had in while, I had had another force 10 CH only 3 weeks ago, and that made me concerned, as force 10 CHs have always been quite rare for me (up to 8 or 9, yes, but not 10). The last straw for me was that a 5mg Zomig nasal spray, 2 verapamils, 2 extra strength advils and a lithium carbonate, all taken at the very start of this headache, did absolutely NOTHING whatsoever to mitigate it. The force 10 pain lasted about an hour solid, and the only relief of any meager sort I could get was running hot water from the bathtub tap over the right side of my head while holding my hand to channel the hot water over my eye socket area. But the even scarier thing for me was, this headache did not entirely disappear, even after the hour, though it dissipated down to a force 2-3, enough for me to be able to have my girlfriend drive me to the hospital. I decided that I would ask the doctor in the Emerge for a prescription for anything he would give me to put a dent in that kind of pain, since I didn't think I could endure it again.
At the hospital, while on a cocktail of narcotics waiting to see the doctor, I cracked open my laptop and scanned the threads on this site again; though I had joined a couple of weeks ago, I had not seen any mention of Batch's regimen. Well, yesterday, I finally did, and amazingly enough, my girlfriend happened to have enough Vitamin D3 with K2 capsules, and the other ingredients at home, for me to start the formula. So, at the hospital, I did ask the doctor if he could take some blood for the serum 25(OH)D level baseline before I started the regimen, but he said he's never ordered that test before, and that I'd have to ask my family doctor or neurologist to order that.
I didn't want to wait to start the regimen, after just having had a force 10 headache, so I just started last night by taking the 50,000UIs of D3, along with the Kirkland multivitamin and Magnesium. I had to take 50 capsules of D3+K2! But I did it. I'm now on my way out the door to go get a more manageable D3 dosage product, but one obstacle I'm already running into is that in Canada, Health Canada has ordered all Vitamin D3 in dosages over 1000UI off the shelves, so I probably can't get any 5000 or 10000UI D3 from a store here

however, it looks like I can order it through Amazon.ca, so all is not lost. If worst comes to worst, I'll drive down to the US and buy some over the border on a day trip. It's only about an hour or so to Ogdensburg, NY from Ottawa where I live, so I'll look into doing that.
I'll just have to get the level tested asap and see what it is. Assuming my serum 25(OH)D was low to begin with, it probably won't be that much higher after only a few days of the regimen, so I'll report whatever it's at when I do the test. I'll provide updates as time passes.