How do i know exactly what is anxiety?

Our alarm system: Anxiety is a normal human emotion that enables us to respond to dangerous situations. It is caused by the mind/body reaction to events or interpretations of them that cause the brain to prepare the body to fight or flee an enemy or dangerous situation. Anxiety responses can be triggered unnecessarily, leading to problems with "stress, " like a car alarm going off unnecessarily.

Well, there is mood : That is anxious ; then there are clinical anxiety conditions. Anxiety symptoms can include feeling nervous or irritable, muscle tension (especially in neck, shoulders ; back), poor quality or minimal sleep, lack of concentration ; easy fatiguability. Lump in throat or butterfly in stomach sensation can occur. Sometimes the worst thing about anxiety is the just not being able to put your finger on.