How to be productive when your depression and anxiety is so bad it makes it hard to breathe?

I'm sorry if I'm disturbing anyone with this question. I'm not in the best place mentally this days. I am just overwhelmed by life in general and it's affecting my body a lot. I have a constant pain in my chest, and I feel like I'm panicking all the time. I just can't do any productive work even if I want to. Anyone else experience this? I feel so disappointed with myself.