It is perfectly normal for you to be anxious in certain situations. But if it becomes your constant companion then you need to consult a doctor. It may be anxiety disorder. This can cause unnecessary worry and fear and it may interfere with your normal activities. This can lead to overwhelming emotions that can hamper normal life. There are many causes that can trigger an anxiety disorder. Stress environmental and genetic factors as well as changes in the brain may lead to this condition. According to new study from the University of California Berkeley while a full night of slumber