She could have a relapsing-remitting type of multiple sclerosis.
Before she needed a walker my wife walked a much the same way I have seen Hillary, and I assisted her in the same ways up stairs, etc.
If that’s her problem she should come clean with America.
My wife and I have felt that she has MS and is very sensitive to the slightest heat.
That is why she wears the shower curtains to hide the cooling vest, she needs and wears.