trying to prove me a psyco

AoA. I need help. I m living with my mom & brother is abroad. We hv some issues . My brother sent me to rehab center @sadaqat clinic murree as a punishment after few months of fight . He trying to prove me a psyco . After 3 monthd i m back. Now He threts me to do it again and also threat me to kidnap my son . I m divorced with a 7 year old son. Kindly help me what should i do . I m healthy not a mental patient but he is trying to make me a patient. We have some property issues bcoz of this he is doing all this to me. Kindly advise me