Yeah, I've felt like that. I feel like I'm enshrouded in a burkha, like my vision is narrowed to only a tiny slit, like something heavy and black is surrounding my entire body. It's an effort to move, to even breathe. Thinking feels like trying to push my thoughts through sludge. Even turning my eyes in a different direction takes effort.
When I get like that, I force myself to get out in public - go to a bookstore, for instance, and read, surrounded by people, just to be in the ebb and flow of life - not alone. I force myself to go to AA and NA meetings - grooming is minimal, if at all - I simply make it a goal to show up. I go to a local museum and wander among the exhibits - again, alone, but other people are around. I stop in the coffee shop and make it a goal to at least say hi to the server.
I also come here to PC, and post, and join in the chat room - that always helps. Little by little the fog lifts.
Sorry to hear you're going through a bad time Kacey - stay strong - it will lift and get better