I first registered with DUK in 2017 when I came out of hospital having been newly diagnosed as a diabetic due to my emergency surgery. For the first time ever, yesterday lunchtime I accidentally (don't ask!) took another dose of my daily morning, 'background' Tresiba!! I panicked & didn't know what to do. Therefore I tested my blood sugar every hour till bed (having normal meals & having 'correction doses' if necessary) including testing twice in the night. On waking my BS was (my normal range) 5.1mmol/L. I thought I shouldn't take my Tresiba this morning due to the 'overdose' yesterdsy & continue through the day monitoring more often. However, foolishly I didn't take my usual dose of Novo Rapid so my monitor recorded 2 hrs later a reading of 'HI'! Never seen before does this mean my extra dose of Tresiba yesterday hasn't make a big difference and I could have taken just my NR? I did take quite the usual dose when I recorded the 'HI' - please help! Thank you. Elaine D