@talk72000,
												There is an autoimmune element to type 1, trust me on that, or don't, look it up.  But, as I said, a tangent. 
We are talking about headaches, and I gather that is related to type 2.
No idea what that has to do with migraines, but I'm still interested in how that happens re sugar metabolism.  Maybe a spinoff thread.
On Sacks, I'm just finding out about his  Musicophilia book.