I've been diagnosed for two years or so. Occasionally I get a libre to monitor blood sugars, find it's a good motivator, also if I'm thinking of trying a new diet variation etc. I am on Metformin 500mg twice daily. Blood Glucose was staying high 7's to low 8's with little movement after eating meals. I switched to a Keto diet, for about three days normal levels were high 5's and low 6's couldn't believe it, but after 3-4days back up to 8's and 9's. Skipped the Libre for about 6-8 weeks, stayed on keto most of the time. Got anew libre last week as I wanted to ease from Keto to low carb and was shocked, bloods are 10+ all the time, food is driving up to 14 and 15, those are numbers I'd never seen before, not after normal food, veggie curry etc. Am desperately frustrated, everything seems to be almost anti common sense.