That's actually a perfectly legitimate thing to ask for. Our feelings and subjective experiences are very real, but our recall of them is terrible. Properly tracked, they're useful data, and such tracking could be cited here. Summoned up from memory, they're noise.

I don't want to live in a world where feelings are only valid when backed up with a spreadsheet.

Parent never described how it made them feel -- they described the motions they made, and called that not ergonomically safe. If op has said "I got a kink in my neck," it'd be a different story.