Almost all human experience anxiety in some form. Common emotions are panic, worry, fear, agitation, anger and sadness. It is natural to feel any of these emotions as it relates to important issues in everyday life. However, anxiety becomes more of a threat to your health when panic and fear ensue over unimportant issues.
Eventually, a high degree of nervousness and worry will lead to sleeplessness, circular thinking, chest discomfort, palpitations and muscle tension. Tension headaches or flare up of migraine headache is common. Unnecessary anxious feelings will become a full-body experience.
If you always feeling nervous or anxious, have trouble concentrating or relaxing, then, you may be suffering from generalized anxiety disorder (GAD). GAD is a common anxiety disorder that affects about 4 million people in the US each year.
The precise understanding of the GAD is evolving, and it is believed that a combination of physical and psychological factors are at play. Causes are unique to every individual and could be triggered for almost any reason.