Hai Doctor My Name Is Shaji I Am Living In

Hai doctor my name is shaji I am living in Kerala trivandrum since last five years I am suffering a serious problem that is when I am talking to others I feel uncomfortable I can't talk very well and I can t maintain the eye contact I feel like I am shivering moreover I can't express the words in my mind and I can't for just smile . what is my problem doctor am I get a serious mental problem please give a replay