"Pneumonia", or whatever made her pass out, is not a modest problem; it's a huge problem at her age. Still, I'll agree that the deceptions made it even worse politically. I say "deceptions" rather than "lies" because I believe she was overheated. Due to whatever causes, including but not limited to pneumonia, she probably had a fever of 105 degrees F by the time she collapsed, and it's not quite a lie to call that "overheated"!
That makes sense.
What’s wrong with Hillary is not pneumonia, at least not primarily.
This guy makes a convincing case for Parkinson’s:
https://www.youtube.com/watch?v=Zr1IDQ2V1eM