I had blood test done which included a random plasma test which showed 3.0 mmol/l. This was done at 9am and I'd had muesli for breakfast roughly 1 hour before which has no sugar at all added. I do not have diabetes. I am exhausted all the time but I have periods of the day I struggle to stay awake. I am 38. Do you think this is right? Or could the test be inaccurate? Dr has not contacted me about it - I've just seen results online. 6 years ago when pregnant I also had 2 random tests that also were 3.0 mmol/l but I'm not sure what time of day. 2 years ago I had a normal random glucose test of 5.0 but again no idea what time of day and whether I'd eaten. Should I contact GP? I'm not sure what to do. 3.0 seems pretty low I can't help but wonder if others have had inaccurate readings like this. I find if I eat something really sugary, within 15 mins I feel light headed, tinnitus gets louder (I have tinnitus all the time from menieres) and my vision goes a bit weird.