well some are they sleep alot, they stop eating like they normally did, stuttering, not trusting people who are around them, they are constantly quiet, they cry, they get depressed etc.
What you should do is contact a mental health facility where there are therapists who can find out what is going on with the 5 year old.
i wish you the best of luck and tell the 5 year year old that everything is going to be okay. God does not put on you more than you can not handle.
you guys will be in my prayers.
