Tony, please be sure that he is doing his 'post' breathing for five minutes after the pain has stopped! If not, it comes right back for most and we all want to abandon ship when the pain is gone. DON'T!!! It will return with a vengeance! And that ups the number of hits per day!
His D levels are quite low! 85nmol/L is about 34 ng/ml. We want it to be above 80ng/ml or 85ng/ml. So, more loading is needed to get there. Yes, I agree that he needs a new D3 test! He also likely needs more D3.
On the Melatonin, he can go up to 25mg. I used to go up to 30mg personally. I did not take it all at once, but in two or three doses as I was up with a hit at night. For me, Benadryl is more effective, but I used the heck out of Melatonin for years too.
Is he eating 'clean' as they say? No MSG, booze, other stuff that kicks off the CH, right? Some give up chocolate and a lot of foods with a cycle and benefit from it according to them. I can't do booze or MSG. Bacon is still on the menu here. But others delete it during a cycle.
Doc has a point too. Hopefully you can check into that bit as well.
ATB and thank you for your tireless work for CHers over there!