Thanks Dr Diana,
I have ordered some more diamox and am going to give it a longer trial this time. Would you recommend taking it consistently or only when the headache is present? I have severe OI and feel I am very volume deplete so keeping diuretic effects to a minimum is important to me. Do people normally start with a very low dose e.g. quarter of a pill & build up or go right onto the full pill? Also what would you consider an adequate length of trial to see if it helps? I ordered 60 x 250mg tabs.