Symptoms of acute stress disorder are similar to those of post-traumatic stress disorder (PTSD), but of shorter duration, lasting at least two days but less than a month after a traumatic event. Symptoms of acute stress disorder may include:
- Being easily startled
- Flashbacks or dreams about a traumatic event
- Withdrawal from people and certain situations
- Difficulty sleeping
- Effects lasting for at least two days, but less than one month
