Hi, I am a type 2 on insulin, my blood sugars normally vary between 7.5 and 8.5. However they have increased substantially in the last month, I am getting readings of 17 and 18. My 3 monthly test has moved from 7.2 to 8.6! 4 weeks ago I was diagnosed with prostate cancer for which I have decided on no treatment but active surveillance. 1 week ago I was diagnosed with COPD (Chronic Obstructive Pulmonary Disease) and been prescribed an inhaler. Has anyone please got any ideas of why my blood sugars have shot up, with no change in diet or activity.