Last time I saw my (relatively new) GP she said "You're testing, what, twice a day?" which left me a bit flabbergasted. She knows I have loads of hypos, sometimes several in one day, so how on earth she thought I could keep a check on this with as few as 2 tests per day, I don't know. Even if I had perfect control and never had a hypo I'd still be testing four times a day so I knew how much to inject!
Family/friends have generally been pretty good, but my partner's Mum shocked me when we met up in a cafe recently and I was trying to do the maths so I could eat a cake. She is hopeless at maths so she wasn't really following the conversation and I think she'd got a bit bored with it - "oh, just eat it" she said, as if I could decide not to inject just that time because it didn't happen to be convenient at that moment 🙄
Generally speaking the worst misconceptions have come from medical professionals though. I doubt I could remember all of them to list, but the one that stands out is the occasion when we were on holiday staying in a cottage in the middle of nowhere and, having injected for dinner, my other medical condition kicked in and made it impossible for me to eat - couldn't chew, couldn't swallow anything solid. The only thing I could think of was to drink lots of sugary tea to offset the 5 units of Novorapid I'd injected, but I'd stupidly forgotten to pack carb counting lists (I have a very limited diet so I normally know all the carb details I need). It was too late to ring my DSN, so the only thing we could do was ring the number for emergency doctor.
First I spoke to a nurse, who, when she realised I was diagnosed in my 40s and was telling her I had type 1, said, in a patronising voice "oh you mean type 2". No, I mean type 1. Thankfully got her to believe I did actually know what type I have. Then, I explained that all I wanted to know was how many grams of carbs there are in a spoonful of sugar so I could make the right amount of sugary tea, but she said, still patronising, but now also horrified "but you can't do that, that's a hypo treatment, you can only have that if you're hypo". Well, I'd only had diabetes for a few months, but I knew she was wrong, but it was all she had to offer, so this left me exactly where I'd started. Thankfully (!) I was so stressed by this time my bgl was actually going up rather than down. About three hours later the emergency doctor rang back and, although my bgl was around 13 by this point, his contribution was to tell me that I should not have my basal injection when I went to bed that night because otherwise I'd hypo in the night. I was pretty sure this was wrong too, and I tried to explain the difference between basal and bolus, but there was no arguing with him, so I thought I had better do what he said as he was, after all, a doctor, and perhaps he knew something I didn't. He didn't. My bgls remained high for the whole of the rest of the fortnight's holiday. My DSN, when I got back and told her the advice I'd been given, was horrified.
) Still, he also reckons that I suffer the mythical "mild" diabetes. 
