I recommend a coffee enema and drink half your body weight in water per day with a pinch of Sea Salt .
I will be working toward a Liver Flush because I realize now that an overloaded liver from several years of regular over 1-1.5 liter of beer per day and accumilations from whatever...life.
But for now I can say this is the second time a coffee enema created immediate relief of the headaches.
Unforntunately I got one last ngith for 15 minutes but was able to massage the pain away.
I find a "neti pot" salt water rinse can be soothing for the sinus while experiencing the sinus type migraine with pressure behind the eye and into the temple area.
Let me know if you try the cofee enema and whether it helps.
I think if it does you can be pretty sure the headache has origins in liver overload.