glucose high

Hello My name’s Shaun and I normally just lurk reading posts but I need some advice please. I’m a type 2 diabetic on Metformin 500mg three times a day, normally manage quite well but recently things have started to go wrong. I’ve had haematuria recently which was treated with nitrofurantoin...

Is it ok to feel at my best when my glucose is at a high 7.2 to 8.0 mmol. ? I try not to get below 6.4 as I feel rough. Most morning testing shows a high as soon as I get up and this appears to be normal for me.