Other sensations that may occur include digestive disturbances, which may include the urgency to urinate, and defecate. The unrealistic feelings of tension, and inability to relax consume ones thoughts. Therefore the stressed body is more vulnerable to free radical damage. These panic attacks are generally intense and can occur without warning. The triggers are generally stress related.
Various foods can also trigger attacks.
Caffeine stimulants, such as colas, teas, coffees, and chocolate are triggers. Other substances include alcohol, and food allergies. In addition, deficiency of calcium, and deficiency of B vitamins can trigger these attacks. Often, individuals that experience panic attacks become so afraid of experiencing one in public, they become agoraphobic. Chronic anxiety is more general and milder.