There can be many causes of splitting type headaches. This should be assessed from a structure perspective. If all structural causes are ruled out, splitting type headaches may be due to biliary stasis or pituitary dysfunction, especially increased activity in the anterior pituitary.
Increased activity in the anterior pituitary is uncommon. The is question is referring to the possibility of a functional increase in anterior pituitary activity giving rise to an icncreased signal to the end organs of hormonal output: thyroid, adrenals, gonads, etc. An overt increase in anterior pituitary output is suggestive of a tumor and should be investigated by a clinician trained in such diagnoses.
Lifestyle Changes
Also eliminate all refined carbohydrate, alsohol, caffeine
Increase fresh raw fruits and vegetable in the diet
Increase pure water (6-8 glassed per day)
Get adequate rest and exercise
Reference: Weatherby, D. (2004). Signs and Symptoms Analysis from a Functional Perspective. Jacksonville, OR: Bear Mountain Publishing.