HI 
Yeah, I lack positive emotions a lot. a lot of anhedonia too. And my head hurts so much since years with this despair that I was to a point to feel my brain in my head. Is it too much thinking? I can elucidate this… now I went sad of just being stuck between 4 walls… I try to get better in my condition every day now but its new for me so the progress is slow… aps dont give positive emotions, antidepressants made me more paranoid also…am I too dumb to be so down since years? yeah…
If you feel sadness it could be depression @Anna1.
I sometimes get confused between the two also.