Lil' LadySmith
Member
A former co-worker's son developed such an issue about ten years ago. It happened every summer for about three years. No explanation for his depression and withdrawal from society. Then it stopped and never came back.
Two things occurred at that time. The young man's girlfriend sold her horse and my co-worker sold his cabin cruiser. The young man spent a lot of time on the boat and at the stable. Looking back, they believe he was in contact with toxic molds from either or both places.
Look into her surroundings.
I 2nd this and what someone else said about taking her to medical doctors. There are some weird diseases and parasites that can cause symptoms that may mimic mental problems. (Can't think of one in particular that popped into my head but will try to remember.) They can be hard to diagnose so could take a few doctors and lots of tests. No guarantee it's something like this but better to get it ruled out.
Thoughts are with you and hope for an answer and recovery.