Hi there. I have been a diabetic for 29 years. Although I have had lots of problems my blood sugars have usually been good. About 2 years ago I started a new batch of insulin and my blood sugars went ballistic. I took it back to the chemist and told him my problems but he said it would not be the insulin. My blood readings did settle down so I just thought it was me. About 6 months ago the same happened again. As I was travelling up and down the A1 looking after my elderly mum I put it down to stress. Last week I started a new syringe of insulin. Immediately my blood sugars went up. I persevered for a day with terrible readings. Next day I started another new phial and my blood readings went back to normal. Has anyone else had these problems. I have mentioned it to my diabetic specialist but get no proper answer. From HYPOHATER