Could I just add that, if your ED prevents you from doing any exercise, that is a very real, physical as well as mental, problem.
Exercise, even very gentle, like walking, is essential to help you recover from birth, physically and mentally. It's not about how you look, it's about your health, your body's recovery and staying healthy for your baby.
Part of that is how you feel. A walk in the sunshine can make people feel inordinately better. A short, gentle swim, or yoga session can too.
If you really feel you cannot do any exercise, that needs to be addresses with medical professionals urgently. If you mean you can't go to the gym but could go for walks, do gentle yoga, pilates, or swim, then you're ok, in that way, for now.