My brother, after returning from a trip, started acting very strangely. He would say weird things and now doesn't talk to anyone at all. He has been sitting outside for 2 months now. He has even spit on our mother. At first we thought there was something psychologically wrong with him. However, when we took him to a mental doctor, he talked as if he was fine. We think he is either possessed by a Jinn or some magic was done to him.