Why do you get a head ache from not eating?

Question

Lets not include dehydration as a answere...Lets just say I am hydrated but have not eatin

Answer 1

Low blood sugar: hypoglycemia, in other words, too much insulin in the blood.

Answer 2

because you are use to eating at a certain time

Answer 3

Your body sends a signal saying you have high insulin in the body.This signal could cause some insulin to th head creating a head ache,migraine,ETC.