Hey
@No1DeadlyPoison
I hope you got through the night ok!
I use novorapid and levemir too and I find that the prefilled pens that I get straight from the pharmacist are really handy because they are bright orange for novorapid and green for levemir. I mean I've been close to injecting the wrong insulin a few times but the colour on the pen has always stopped me in my tracks!
However, on a seperate but somewhat similar point - sometimes when I listen to my gut instinct and think I am going slightly high (on the way back from work, or sitting in a meeting etc), I will inject a corrective dose of novorapid without thinking, to then realise (by taking an actual BG reading, which I should have done in the first place) that my BG was fine. But like the guys have said, it's best not to panic, eat some high glucose/carbs food and just test regularly for a few hours.
Note to self: Test before listening to gut instinct!