Thank you guys so very much. I will do some more research and see what we can do to stop the headaches. But it sounds very complicated and needs a lot more researching. Thanks for your help and time.
If this is from the cervical spine pinching the blood vessel, I don't know how to fix it other than surgery or cortisone, and cortisone has its own problems and is only temporary and surgery has its problems, but again, if something physical is pinching the only way to stop this seems to be to clear away what's doing the pinching. If it's something else and I misunderstood, then more information might help. Sometimes massage or chiropractic or osteopathic can help ease the pinching of the cervical spine, and sometimes there are exercises you can do, sometimes taught by physical therapists. There are natural supplements that help with inflammation and with opening blood vessels, but it's complicated, so I'd recommend reading some good books on herbs and consulting a naturopath, but again, if something is physically pinching you have to attack that as the source of the problem somehow. Tough luck here.
Reversible cerebral
vasoconstriction syndrome
http://www.cchil.org/hospitalmedicine/images/resources/051112-111647am-Reversible%20cerebral%20vasoconstriction%20syndrome%20Prac%20Neuro%202009.pdf
It is cervical artery constricton which causes a lot of headaches.
What is brain artery shrinkage? Do you mean the artery is clogged? You have to know what you're dealing with before treating it with anything, natural or not.