Hid my bipolar for 10 years at work. Respected and trusted by my boss and coworkers..

Last year, had breakdown. My work now is better than ever. I feel I need to "prove" myself. No matter what I do, my boss doubts me. Even questions my time coding! I feel unappreciated and discriminated against because now he knows about the bipolar. I can't just get a new job, this job is best situation for my family. What can I do? Going to work is torture now and before breakdown I loved being at work. I cannot speak to anyone about this. Does anyone have advice to help me? Thank u!