Claire,
Hope all went well at the dentist... that sounds awful.
I am not sure about the GP thing though...as Sid says, you are usually better talking to the experts.. but, in my limited experience, I have had one occasion where the GP was fabulous with my diabetes, and it was to do with being discharged from hospital. I got discharged from hospital, after giving birth, and one of the results of my blood tests was off the scale. I forget which is was to be honest, something to do with platelets and clotting. The GP saw this in my discharge notes...and went ballistic! I was not even aware of a problem, (as the hospital had just said "everything is fine") until the hospital consulatnt phoned me at home, and said that he had just been shouted at, by my GP, and that he was now following me up. I ended up with BP meds for a while as well...but it was only thanks to me GP! This particular GP freely admits he is no diabetes expert..one of the other GPs has this role, but he did recognise when something was wrong. If you are able, make a GP appointment...the more people you get looking into this the better, particulay after your DKA experience!