Everytime I go to the GP they either confirm I have what I think I have or say that I haven't and then when I go back a week later still with symptoms tell me I was right all along. I really cannot see the point of them beyond being a barrier between us and prescription drugs and so they can refer us to specialists if you are clever enough to look up your own symptoms and treatments and know a good source from a bad source. I feel with the help of google I could do as good a job as most GOs - "oh hello Mr Smith, you have an itchy arm do you, you have 'itchyarmitis. Here's some itch cream and if that doesn;t work I will give you an itch pill" or "hello Ms Jones, you have found a lump have you. That's probably okay but I will send you to a specialist just in case it isn't."
Can you tell I have had an unproductive trip to gp today?
But really, I am yet to meet one who knows more than a relatively intelligent person with access to a computer and half a brain.