I know a guy that's 80+ years old, was something like 6'4" or 6'5" when a young adult and below 5'9" at this point. Of course, he's on his feet a lot at work, but I was surprised when he told me he was once taller than me!leVieux,
"but I' also down from 6'2" to around 5'10.5", as old age shrinks EVERYTHING !"
Maybe your tape measure is off...
I cannot imagine that much height loss...are you sure?
If so, I'm doomed to disappear from sight soon.