My migraines after 20 years at last understood. They are due to histamine intolerance.
So I have to:
1. Avoid histamine containing foods Aged foods have alot of histamine like cheeses that are matured, miso, tempeh and all other fermented food
2. Foods that cause histamine to be released in the body
3. Foods that destroy the enzyme (Dao)that regulates histamine in the body, eg black and green and puerrh tea.
The doctor who found this is looking for a vegetarian source of Dao for me