I've done so well in losing 3 stone on the Newcastle diet and have moved over to the lchf diet and I'm doing ok . Only problem I'm having is low blood glucose levels I have had a few hypos not sure if this is normal my bloods are crashing to 3.3 and causing me to become very ill. I was trying to do a little walking exercise today and I ended up with cold sweat and dizzy and my whole body started shaking . I had to have some boiled sweets to bring my levels up. I'm going to see my doctor but want to know is this something that normally happens when people change diets?