I'm not a healthcare professional or anything, but what you described sounds a lot like the PPA/PPD I experienced after having DD.
After my first loss I experienced a LOT of depression that lasted for several months. I never went to the doctor specifically for those feelings and figured I would snap out of it eventually. Now after having PPA/PPD, I'm fairly certain that's what I was experiencing. Like the pp said, the sudden surge and then crash in hormones can make you feel crazy.
I had another loss a few weeks ago and while I weaned myself off of Zoloft (which I was given for PPA/PPD) while we were TTC, I've since started taking it again and it has helped immensely. Like you I am a SAHM and found that I was just sort of zoning out and not always present and it just is not an option. And while my heart is still heavy and I am sad, it has taken the edge off so I don't feel such overwhelming despair and I'm much more with it.
I'm sorry you're going through this. Miscarriage or PPD alone can be so isolating, but coupled together is really tough. I would definitely encourage you to reach out to your OB. Even if you end up not getting meds, my OB helped me find a counselor and support groups for my PPD.