As I remember, Cindi, you are only taking verapamil, probably at a pretty low dose. So the hopeful part is that soon you'll have more of an arsenal. Don't know whether you have started the D3 regimen or tried any of the "Treatments Without Oxygen ..." that are mentioned toward the end of this document -- https://clusterbusters.org/forums/topic/6213-basic-non-busting-information/ -- which I'm pretty sure I would have linked to in your earlier thread.
CH is very unpredictable for lots of people. With the pattern you have described here, I'm also wondering about triggers, which you can read more about here: https://clusterbusters.org/forums/topic/4568-triggers/ . (I'd suggest reading through the whole thread, not just the first post.)