Macho behaviour usually stems from fear. At the heart of aggression is the need to present a strong external image. When you are hurt, you pretend that it did not hurt. When you are upset, you hide your feelings. You cultivate and maintain a stoic image of indifference.
This is not healthy. You are who you are. You are the age that you are. Your feelings are real. The pain is real. Your age is real. Pretending is dangerous.