Answer:
Posttraumatic stress disorder.
Explanation: A post traumatic stress disorder is a psychological injury an individual obtains as a result of a terrible experience they passed through, that causes any or most of the following: fear, anxiety, sleep disorders and lack of concentration. A PTSD if abbreviating the phrase, takes a long time to heal in most cases and it's victims require trained psychologists to overcome their fears.
Taryn is passing through a PTSD after her terrible experience at the parking lot.