The military is a hard life. I grew up in a military family and that might be part of why I have personality disorders.

Personality disorders are long-term, tending to show up by young adulthood and sometimes mellowing out in middle age. But they definitely can be triggered into showing up. Because we keep it under control when stressors are manageable, but can easily get pushed over that threshold where it gets out of control, and can be hard to get back under control when that happens.