I think A. most studies show that episodic acute stress causes muscle tension, anxiety, high irritability.
The most common signs + symptoms:
Transient Emotional distress — some combination of anger or irritability, anxiety and depression.
Transient Muscular distress—tension, headache, back pain, neck pain, jaw pain, and other muscular tensions that lead to pulled muscles and tendons and ligament problems.
Transient stomach, gut and bowel problems, heartburn, acid stomach, flatulence, diarrhea, constipation.
Transient hyperarousal—elevated blood pressure, rapid heartbeat, rapid pulse, sweaty palms, heart palpitations, dizziness, migraine headaches, cold hands or feet, shortness of breath, sleep problems, and chest pain.