Cavencruiser,

As I said, you should not try to connect every dot. It is a losing game.

The smell is sometimes a metallic/iron smell or taste which is also the smell of blood. A bit of mucus blood that never leaves your nose could be the smell. Nobody knows. Some doctors will deny you smell anything. The weakness is more likely a spinal cord momentary trauma.

But, nobody can say for sure. It is all conjecture.