Difference between anhedonia, emotional blunting and depression

I feel like it’s important to know the difference so you recognize where your improvements are. There’s some people who are newer that post and what they say doesn’t really add up. I’ve had depression my whole life but anhedonia and emotional blunting without the tiredness and profound sadness of a depressive state is a whole new hell. Or having one accompanied or not Accompanied by another. Also the difference between medication induced , trauma induced, mental illness induced and life stress induced. Realizing the difference between these all has helped me target symptoms with a more appropriate approach and treatment. I feel more comfort when I can make sense of my symptoms just saying for anyone that was confused cus I was for a long time 😵‍💫 keeping pushing !