Stress

Is the body’s natural defense against predators and danger. It flushes the body with hormones to prepare systems to evade or confront danger. This is known as the “fight-or-flight” mechanism. Symptoms: Sweating, Fainting, Headache, Muscular aches, Fainting.

(Ref. MedicalNewsToday https://www.medicalnewstoday.com/articles/145855.php#symptoms)