The panic attacks can last for several minutes or hours and can cause intense discomfort to a person. Phobias: Many persistent fears or being paranoid about something and avoiding the object or situation can lead to mild to intense anxiety. Phobias can lead to rapid breathing or shortness of breath. Sometimes, phobia of witnessing blood or tissue injury, which is known as needle phobia can interfere and complicate medical intervention or tests. Obsessive-Compulsive Disorders: This disorder is characterized by persistent thoughts, ideas, obsessions, purposeful, or intentional behavior. A person can be termed as suffering from obsessive-compulsive disorder, if the obsessive thoughts and compulsive behavior is time-consuming and distracting enough to interfere with the daily functions related to work or school. Post-Traumatic Stress Disorder: PTSD condition is diagnosed when a person again experiences a traumatic event with intrusive tense recollections which can be dreams, flashbacks, or hallucinations.

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