Yes—most people show a blend of two or three accentuations. A single-type profile is uncommon. For example, emotive and exalted traits often show up together in highly creative people.
Each pattern has tradeoffs and strengths. Demonstrative types often do well in visible, people-facing roles; stuck (persistent) types in law, research, or detail-heavy work; hyperthymic types in fast-paced, social settings. The point is to match the setting to your temperament—not to pigeonhole anyone.
Yes—stress shows up differently by pattern. Anxious types often struggle with sleep; excitable types may feel chest tightness or a racing heart when anger spikes; emotive types may feel physical tension when they take on others’ distress. These are tendencies, not predictions—see a clinician if symptoms concern you.
Your underlying style is fairly stable, but scores shift with stress, life crises, sleep, or therapy. As people mature and pick up coping skills, a sharp spike from adolescence may look milder years later.
In large samples, women sometimes score higher on emotive or exalted scales and men on excitable or stuck scales—but the differences are small. Your own scores matter far more than any group average.