You move into the unhealthy range when you ignore your own needs or health due to your focus on pleasing others.
The “fawn” response, coined by Pete Walker, MFT, in Complex PTSD: From Surviving to Thriving, is when a person responds to a threat by trying to be pleasing; preventing an attack or conflict by managing others’ emotions and needs. In childhood you wanted to keep the peace, walked on eggshells around those who were explosive or unpredictable. You took care of the emotional needs of others and ignored your own.
This ignoring can create a lot of physical/mental symptoms. You learned to shapeshift depending on who you were with. You can’t say no to another volunteer job or you’d prefer other people pick the restaurant because you’d rather everyone be happy than suffer through someone’s upset. You get exhausted from taking care of everyone else on top of your paid job and end up resenting the people in your life