Hi, cheyrainyday, and welcome to Psych Central! Yes, many of us can understand what you are going through. You do a great job of explaining how it feels.
Sometimes depression can be caused by an imbalance in brain chemicals, not by anything that has happened to us. Maybe that's your case.
I really suggest you talk to your med prescriber about this problem. It sounds like you need a stronger dose of your med or at least some kind of med adjustment. Okay?