Before I knew I had diabetes, I went 3 times to the doctor's within a month, saying I was constantly feeling unwell, was so tired I had to go to bed at 5pm, was constantly needing the loo. First he said I had a throat infection, at next visit gave me a mouth swab, then said I was just tired from work. I went back to France for Easter (I'm French). Went to see the doctor, had a blood test the same day, was in hospital the next. It didn't fill me with confidence with GPs in the UK.
Also had an encounter with a GP from my surgery recently to renew my repeat prescription, who said I was using too many strips (5 a day). I replied that that was what the hospital had advised as I was type 1 (check with every meal, before bed and before I drive), he said it was too much and he would contact the nurses at hospital to tell them so. I complained to the surgery manager and got an apology from the GP on my answer phone, although he finished this apology by saying that I did have to check my blood so much because my diabetes was badly controlled.
Having said that, my current GP is excellent and I can't fault her.