Became an introvert in highschool because my mom was teaching there.
Joined a Medial Course course in India.
Two months into the course while I was struggling to study and properly communicate my class coordinator asked me whether I am taking psychiatric medicines.
It hurt me so bad.
He never even once talked to me nicely. He always gives indirect replies to me.
I was always humble.
I always spoke in a soft tone.
He mocked my caste (Pentecost) infront of my friends and still I replied with a smile.
He called me mentally ill in a loud voice infront of the whole class when I asked him whether to see doctor for too much sleep. I am so done with my life. I don't know how to deal with this. He treats every other student except me like his own children.

About him: He once came to class two times on a fine morning and started explaining why his religion - Hinduism has more astrological evidences than other ones. He said this - "Quran talks about Muhammad but it does not have evidence. Bible tells about Jesus but It does not have evidences." There was some kind of competition. I said I will do a presentation on the topic - Soul, Body and Mind. He said in a loud voice it's good but you should not say Hallelujah infront of the judges. He again mocked me religion
He is short. He wears some kind of crystals on his hand worth 200 pounds and explained to a group of students why it gives him certain powers. I think he is some kind of sanghi. He gets mad at me when I wear green shoes. He goes to bar with students also He puts cool under his tongue.
No other faculties in this college has a problem with me. They all respect me.
But this guy.... He has been mentally harassing me for 9 months. I don't know what to do.