What is the technical explanation for headaches among individuals withdrawing from Marijuana ( Cannabis ) use?

I know headaches are among the symptoms that many people do experience upon withdrawal from SMOKING (and no other methods, for this questions purpose for now) and I know that they start within about 24 hours of withdrawal and last a few days (or occasionally longer due to prolonged heavy use) and intensify after day 2 till they slowly subside.

I do know the brain itself cannot feel any pain, hence i’m curious to know what is exactly causing and what is exactly feeling this pain.

What I’m interested in, is the technical explanation and the biological cause of this pain. Let’s say, the individual has reported repeatedly that the pain occurs after every instance of withdrawal from regular use, and is ONLY felt in the area immediately behind the forehead (It’s certainly not felt deeper than 2 inches from the scalp). mostly on the right and left sides of the forehead and hardly ever around the center; the areas above both eyes basically.

the pain is not quite constant, it seems that it’s intensity is ever-changing and it feels the most intense near the eyebrows (where the forehead has a mild tiny bump right above-behind the eyebrows).

Now, i wanna find out what is it that’s causing this pain and which parts of the head are feeling this and why. Is the pain due to changes in blood vessels? is it coming from any other part of the brain? or maybe it’s just due to neurochemical changes? and if the brain itself cannot feel the pain, then what is feeling this pain? the skull? the eyes? the blood vessels themselves?

I appreciate people who treat others with etiquette, respect and logic. PLEASE ONLY ANSWER the question directly and PLZZZZ for your beloved Jesus’s sake AVOID all that PROPAGANDA talk. This is a question with an answer, I’m sure and the answer is not “just say no to pot” ok? so lets behave like adults and get to the bottom of this scientifically!

thanx in advance!
@smithy, i must say u r ill-informed my friend
here is just ONE link for your reference:

http://www.marijuanapassion.com/Marijuana-Withdrawal.html

you may google marijuana+withdrawal+symptoms for more info as well.

but thanks for trying, however your response has nothing to do with my question and the answer that I’m looking for.

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