Yesterday, the Daily Mail out of the UK ran a story asking whether Hillary Clinton had brought a personal doctor to the 9/11 memorial. There were lots of photos of this woman with her right before her collapse, and doing things that were plausibly field diagnostic tests such as checking her pulse or having Clinton squeeze her fingers.
Turns out, she was a PR aide (and former State Department employee), so it's not what it looked like.
The New York Post describes this as the Mail "mistakenly" describing her as a nurse, but the Mail headline is explicitly asking whether or not she is a doctor. She apparently looks somewhat like Hillary's actual doctor, the one who later gave the statement about her pneumonia.
In any case, the reason outlets like the Mail are quite right to ask these questions is just that the Clinton campaign has proven it can't be trusted to provide answers. Clinton supporters will want to say, "See? This is how conspiracy theories start!" Well, yes, it is, but not with journalists asking questions. They start with powerful people who hide truths. If you don't want conspiracy theories, try transparency.