Bad comparison. There is not a (big) stigma against physical health, you can have no arms and legs and doctors will still treat you respectfully. The only exception is terminal illness but even then, patients are treated with pity not disdain or disgust.
I've seen people on the internet complain about how fucked up they supposedly are, but they have careers and friends and know that even if their illness tells them they're losers it's not true. I'm talking about people who are diagnosed, maybe take meds, but are high functioning. You may not think they're normies and they don't consider themselves normies, but they are. Many normies are secretly fucked up anyway, it doesn't suddenly make them not normies if they are still well-adjusted and successful.