Spouse is so averse to interacting with medical systems at all now, "all they do is tell me I'm fat," he says.
I'm sympathetic, I'm fat too, but also I've had to badger him for MONTHS to get him to schedule routine blood tests for a med he's on, and to chase up his autism referral. Even for these things he's sure "they're just going to yell at me for being fat."
If fat people are less healthy? This is why. It's not being fat, it's systemic institutional fatphobia.