anxiety
/aŋ-ˈzī-ə-tē/
noun
apprehensive uneasiness or nervousness usually over an impending or anticipated ill : a state of being anxious
an abnormal and overwhelming sense of apprehension and fear often marked by physical signs (such as tension, sweating, and increased pulse rate), by doubt concerning the reality and nature of the threat, and by self-doubt about one's capacity to cope with it
mentally distressing concern or interest
Yet the pace of a child's progress can also be a source of anxiety for mothers and fathers.
noun
a sudden feeling or episode of anxiety; specifically : an episode of mild to severe worry, distress, or fear that may last for hours or days, is typically preceded by a period of gradually increasing levels of fear and worry (such as that associated with a perceived stressor or threat), and that has symptoms (such as increased heart rate and shortness of breath) similar to but often less intense than those associated with a panic attack
noun
any of various disorders (such as panic disorder, obsessive-compulsive disorder, a phobia, or generalized anxiety disorder) in which anxiety is a predominant feature —called also anxiety neurosis, anxiety state