<<Disclaimer: Verify this information before applying it to your situation.>> I need to add that I am not Gluten intollerant, I have been on the diet and noticed no improvement by being 100% gluten free (also had the blood test which came back negative) with respect to the light headed ness. In fact the opposite happened, I became worse because the mental strain of trying to think straight and stop a panic attack was taking its toll. I went onto Xanex and this has treats the symtoms. I had another thought, and that was that at the same time as getting sick with wheat intollerance, I might have also had a problem with a new prescription of glasses. Because they both happened at the same time I may have missed it. I'm seeing the eye doctor next week. I've had my thyroid, sugar levels and everything else checked. Andrew