On 09/15/2011 04:28 PM, Subscribe (celiac) Jake wrote:
> After thirty years of drinking a pot of coffee (minimum) a day, I
> found that after giving up gluten I simply forgot to drink coffee. I
> was caffeine free within a month. no withdrawal, no halo, no
> headaches.
>
Lucky. Maybe you have a social life?

I'd not heard of a halo headache 'til now. Ref. the paintings of JC & 
the saints.

William