Hello Welcome to HCM You have problem of anxiety and stress on talking to any one. You are not able to speak and converse properly. This is causing significant distress and you have started avoiding people. You have to stay alone at home most of the times due to this problem. From available history I can conclude that most likely you have Social Phobia Disorder. This is a type of anxiety disorder and individuals have difficulty in conversing and they can t speak in public and on presentations. On severe cases they can t even move out of home because of fear of embarrassment. Consult a Psychiatrist for management of this disorder. Medicines like SSRI anti depressants as Sertraline, Escitalopram, Fluoxetinet etc are commonly used in this disorder. Other medicines like Propranolol are also useful. This drug helps in improving anxiety before some important event. Behavior therapy and assertive training by a Psychologist is also used as one f treatment modality. Thanks, hope this helps you