What is anxiety and how to determine its cause?

As a rule, it is not possible to “feel” anxiety on your own, then it grows deeper, disguising itself as “ordinary” diseases called psychosomatic disorders:
bilious headaches, insomnia, problems with the gastrointestinal tract, excess weight.
Along with or instead of psychosomatics, it can take root in relationships when you become irritable or lose joy, concentration and cannot do your usual things ... or your condition has moved into the next phase of generalized anxiety, fear and panic.
The ability to recognize and interact with the emotions is the most useful psychological skill for a modern person. You can get out of anxiety and negative states with the help of psychological techniques, using which you can quickly and visibly change the quality of life.