HI TripleTrouble,
I'm really sorry for your agony and I live it. I found out five months ago but have been alone over a year, when he first abandoned us in the middle of the night.
Anyway...
I had the symptoms you write about and I don't know if it will help any, but something I stumbled on was appealing to my senses. My brain was so far gon that I didn't know what day it was for about 9-11 days, then it would level out,then return. I lost 30 pounds in three months, as well.
I couldn't seem to get a grip or handle on my own thoughts and felt propelled by air, with nothing under my feet, much as I still do.
So when all else failed, I will share that I got through to myself through my senses. Scents, sounds, deep thumping music that I liked for short periods, meditation tricks I've worked on for a while now.
There are some other things that began to show me the light of day as well, but those were first.
Other things I did and do are a journey through my roots. I've been to the house I grew up at, I went to grandparents graves (though it was 4 am), I went to my mother' in laws grave and told her I missed her and where did her son go?
It is a feeling of reaching, of reaching into my soul and searching for strength that is not always there.
Another thing that really helps -and I do this daily-is search for anything that had to do with my life before I met Perv/Happy Pants. I had a hard time remembering there even was life before him and I was a kid, but it's true. Likes and dislikes, I even looked up old friends that faded away and some were really excited to hear from me-one was even glad he's gone!
If you want to I can Pm you some very simple things I did. I'm not a psychologist or counselor, but have been told by them that these are top notch skills and they've gotten me by some of life's darkest hours, without pills.
And, I tell you, Yoga is the most amazing thing.
I wish you peace and some moments of clarity that will grow and grow. And I hate saying it, but "it does take time".
I am pretty much alone in daily life, as you are, for the one person I feel truly understands me is hours away and caring for her motherless neice and full time job.