Any ideas on lowering increased intercranial hypertension?

Are you sure this is your brain stem and not spine neck muscles issues?

A crooked and stuck neck can be unbelievably uncomfortable. It’s both on the surface and the feeling goes deep as well.

Standard chiropractic although it scares some people can release this temporarily.

NUCCA chiropractic, which is different and takes much longer to work has a higher success rate in the end. There is a specific website for that that shows practitioners, and there are not very many of them.

very hard to diagnose over teh internet - but as an example i had crippling headaches recently that were immobilising me - and i only found by accident it was actually some kind of pulled tendon / ligament behind my ear that was causing all the pain - until i put my fingers in just the right place i just thought it was a headache as it seemed to encompass the whole back of my head and neck area.

the strange thing was i didn't remember injuring it - it just kind of came on over the course of a few days - but it was severe.

if it is intercranial hypertension i guess its likely driven by inflammation - so i might try some of the Buhner herbs for brain inflammation - i think they can help - but the effects are not night and day and can take a while -eg maybe Uncaria Rhynchophyla ( Chinese cats claw )