I recently lost a lot of weight and have put a little back on which I want to get off again. I am diet controlled and tend to run at round 4 - 5 as normal. I am now trying to retrain myself to stop overeating and am using an app and not eating until I am hungry and my food intake has reduced drastically. I am feeling no different than I normally do but when I tested the other day I was 3.1. I am now going between 3 - 4. Somebody told me that under 3.9 was considered hypo and I couldn't drive at that so have been eating to bring my figures up before I drive which is sort of going against the not eating unless I am hungry theory. Is there a set hypo range in the UK and what is it?