Talk to Psychiatry on Psychological

I have constant inner pain like burning or heaviness or tightness in my digestive system or my chest around heart. I'm going through alot of mental health issues and had consulted more than 50 doctors. In my workplace my colleagues abuse me mock me which are so much painful that I want that i should have been died rather hearing their comments. I have nothing to do apart from fixing my feelings and sensation. All these negative inner voices are became my identity and i sometimes can't live with myself. I have read more 65 books on anxiety chronic pain,ocd,ptsd but all seem useless. Please help me and figure out my problem.