VQ - being at home and contributing to your OH's wellbeing rather than pursuing your former career does not make you " a shell of a person" - it just means that at the moment you are in a different place in your life - that is fine. You are still you.
We are brainwashed into thinking that we have to be young, beautiful and earning lots of money in order to be a worthwhile person - don't succumb to this!
If you have MH problems at present you are in the right place and doing the right things. The goalposts have moved for you at the moment; you have new and different challenges to meet - all as valid and important as pursuing a professional career.
I have spent 2 months unable to go out and sometimes feel useless - my DDs knock that on the head and say I have done lots for them in my time and it is their turn to do lots for me - and to let them enjoy that. Yesterday when I went to get some rehab help my DD just said "Thank goodness you are looking after yourself for a change."
Just because I cannot do what I used to does not mean life is not worthwhile - and it is the same for you.
I am not a drudge or a shell, and neither are you!!
Soops place of refuge and friends





Do you mean duff her up? 
