Yes, I know what you are saying. I have gone through IRCC websites and everything!I have not gone through the same thing. I guess you only want reply from uzomark. She hasn't posted since 2018.
It's from what I've understand and read on IRCC. How do they know that you do not have TB without an X-ray. That's the most common medical condition they want to find out from a chest X-ray. Unless you are already done previous medical for immigration purpose and are inside Canada.
But what's the point of merely guessing and speculating that's what you are doing right now. Don't demotivate others.
I wrote here to know the reality, did someone actually have gone through this situation, and what happened, etc.