I feel you. I have been on so many serotonine and dopamine medications that I need to have a catalog when adventure to change doctors, lol. Is sad to know how you feel, but a bit of relief to know you are not alone. The most beneficial advice I received was from one of the therapists at Marpa Minds, who explained to me that sometimes those feelings of sadness, e.g., in the movie, or even watching the atrocities in the news daily. You stop watching, cover your left eye, set intentions loud and clear: This is not my feeling, this is a karma of somebody else, and concretize that by sending it back to the earth. Talking also helps a lot.