Not been diabetic for long 4mths or so put on metformin 2 mths ago was ok at first but the last 2 weeks after having instant headaches, shaking, and gen feeling unell started to do my bloods,19.8 was the 1st so this is prob why i felt ill,but since then i can have breakfast (do bloods b4) they will be 15 or so when ive eaten toast or something it then goes up a bit then take my pill and half hr or so after this its back up to 18 + the lowest its been this week is 11.6.spoke to the docs and she said if you get to 20 then we get a bit worried mine has been 19.8 many times but she didnt seem to hear me.She said she gong to do bloods to get an average so made me an appointment in 3 weeks to get blood test with the nurse,seems a long way off when im feeling like ***** all the time.anyone got any advice for me.and what happens when and if it does get to 20 what should i do ? i dont eat a lot of sugar and my pal said no sugar is bad.im so confused.and im not to sure how to use this site im assuming i can get emails from people.thanks for any help you can give