Your reactions will vary according to your specific incident. Remember there is no right or wrong way to react. Like a virus, each incident progresses along its own natural course, and heals in varying amounts of time. If you have had previous trauma or other stressful events preceding the traumatic experience you may have a more intense reaction to the new stressful event and need more time to recover. If the previous trauma has not been adequately resolved, it may be reopened by the current trauma.
Professional help can be invaluable in such an instance.