We're all dead tough sitting on a couch watching telly. It's easy to say "quitter", "no balls", not a true "warrior."
Personally, if I thought my long term health was in doubt, or I couldn't carry on, for whatever reason, then I wouldn't care what people thought. Im out of there. It's a sport. Nothing else.
At the end of the day, you want to get home in one piece. That way you live to fight another day.