Even once good can become bad

Every cherished moment over the past two years (atleast past one year) is becoming non-cherished moment for me. Every moment where I thought I enjoyed then has become moments of worry and pain for me now. Every moment where I thought I was valued has become just moments of masking for me. Every spot where I thought I had the best moments brings back to me pain and agony and I feel pity on me for blindly enjoying those moments. I feel disgusted to have tried my best to feel and make "all" comfortable while people felt it better to avoid me to make all comfortable.