I'm inclined to believe the OP. From my own experience GP surgeries aren't very pleasant. The staff is supposed to create a helpful atmosphere, instead what you get is a hostile atmosphere that treats every single case suspiciously until it's proven that you are making an appointment for a genuine reason. Kind of like 'guilty until proven innocent'.
My mum, who is genuinely unwell and has been for some years, was treated like shlt not only by the receptionist (who reduced her to tears) but also by the doctor she saw. In fact the doctor stopped her from explaining what was wrong with her by cutting her off and saying 'oh stop making a big deal out of nothing' and sending her on her way.
My mum eventually managed to make an appointment with another doctor who actually bothered to take the time to listen to her and we found out she had a high blood pressure and needed to be on medication for it, we also found out she had one other illness (which I'd rather not mention here) she needed to be put on meds for. In addition to that she was told she needed an autopsy done.
It took us over two years to actually get these diagnosis because the GP wasn't willing to believe my mum when she said she was not well, so much so that he actually stopped her from describing symptoms and pretty much said she was making things up. On top of that every time my mum phones the surgery she has to deal with an abundantly rude receptionist who clearly thinks far too much of herself and like the GP doesn't know how to do her job properly. My mum actually stopped making appointments when she was very unwell because she didn't want to deal with the receptionist.
So yea, I believe the OP when he says both his GP and the GP receptionist are incompetent and rude. Op I would write a formal letter of complaint, that's what we did.