Anxious
A person who is preoccupied with the thought of something that the person is not able control is feeling anxious. One who worries excessively and uncontrollably might be suffering from anxiety disorders. An anxiety disorder is understood as a type of mental health condition. If one has an anxiety disorder, he or she might respond to any ambivalent stimuli and situations with fear and dread. He or she might also experience physical signs of anxiety, which include pounding heart and sweating.
It’s quite normal to feel anxious sometimes. One might feel anxious or nervous if he or she has to tackle a problem at work, take a test, go to an interview, or make an important decision. Some level of anxiety is beneficial and enhances performance. For instance, anxiety often assist an organism to notice dangerous situations and focuses their attention towards the danger, so he or she can avoid the threat and stay safe.