One reader asked me to look into yogurt- something that I have almost every morning, to see if it triggered any headaches later in the day, and sure enough, the day that I did have some yogurt, I DID get the pain!
I am going to turn this into a personal study and chart the results for 2 weeks just to make sure.
This is what I had yesterday:
Breakfast: Masala Chai at 600am
Mid morning snack- Fruit Yogurt with Flax Seeds and Strawberries and herbal tea with the daily vitamin supplements.
Lunch: Greek Salad Pita with other toppings 
Afternoon tea: Tetley Tea and a couple of chakris Dinner: Indian fare: Yogurt rice and a tiny bit of mango pickle...
( no headache after the yogurt rice, though- weird)
I felt the head pain later in the afternoon, around 230-300pm.....and I was tempted to have coffee from the Tim Horton's chain, but resisted and had homemade tea instead along with some chakris. Yay!
That helped some...but the pain lingered a bit and I finally massaged some GHEE around the temples to cool off whatever was happening in the head! it worked!
I headed off to bed at 1015 after my favorite show " The New Adventures of old Christine" I *love* that show!
So, over all, an OK day...I hate it when these headaches pop out of no where. I'll be back with an update later! till then, take care!