I feel I must add a comment on this. A hypo is officially defined as any reading below 4 mmol. I'm not sure it makes much difference if you are on meds or not. I went down to 2.6 a few weeks back but like the poster was able to take action and have some glucose tablets. I agree if you are not on insulin or a sulfonyl urea you are highly unlikely to go into a full hypo i.e. lose all control but as we all know the 4 mmol definition is a bit arbitrary and varies from day to day for many of us and there are a few like the poster who can have a level of hypo even with no meds.