Possible reasons for headaches and migraine:

• Dairy and wheat allergies
• Dioxin poisoning “Agent Orange”
• Tobacco
• Blood sugar
• Bacterial sinus infections
• Viral infections
• Hypothyroidism
• Thiamin need “Vitamin B1” (Biotics Research Supplement Bio 3BG)
• Toxic colon
• Toxic liver
• Stress
• Adrenal exhaustion
• High or hidden copper toxicity

read about other chronic conditions