I've was in hospital for four days as I took a bad reaction. I was put on gliclaside and supported to learn how to test bg. The problem is that On Saturday I tested my sugars and it was 17.4 but ten minutes later if that the nurse came and did her observations and my bg was 12.2 I really don't know what is happening. Is my meter thing wrong or is there something else I need to do. I'm really worried as my bg is up and down and I'm really trying hard with what I eat and drink. I've had diabetes for over 2 years but the need for meds is only been for 2 weeks. I'm so confused. :???: