没有资格喊痛

This nickname means the user believes they lack the standing or eligibility even for expressing pain - it portrays profound self-deprecation or inferiority complex. It could imply a long-term habit of suppressing true self-expression due to certain reasons like having less social value/status compared to others, being overly considerate toward surrounding opinions, and unwillingness to be self-indulgent in sharing sorrows, etc.