I totally hear ya.
I get the same thing from people in my support Group. "maybe if you did this exercise or that exercise... or if you'd just build up your muscles... you'd get better.". You'd think after 3 years, they'd get it.
I'm hobbling around earlier this am, in a 10 flare, and Mom wants to complain to me about the new telephone that she can't seem to hear right on. Not the time to engage me in any conversation, let alone expect me to read the tiny print on the manual. (it's actually more a problem with her hearing aide not being set right than the phone's fault)
Anne