I am a typical NHS GP so let's start by getting something straight about the latest article in the national press about how useless I am at diagnosing cancer. No adult ever attends my surgery without a potential diagnosis of cancer being at the forefront of my mind. Every pain is cancer. Every cough is cancer. Every lump is cancer. Likewise every chest pain is a heart attack. Every childhood rash is meningitis. I defer to the worst case scenario for everyone and everything I see.