sometimes people need to cry alot when they stop drinking. They are going to end up healing tears if you go on.
The appetite thing isn't surprising. I had no appetite when I was drinking and not for several weeks after I quit. Of course I had pancreatits....but my brother (now in recovery) had that problem too....so it may just be part of physical and/or emotional withdrawl.
My brother coached me through drinking ensure until I was able to eat. I ate small meals - mostly just picked at the food.
In time that got better. Early sobriety was just as scary for me if not more, than the end of my drinking.
Get a support system of people concerned PRIMARILY about YOU, not your relationship. My support people helped me keep my focus on doing what I needed to recover instead of on all the problems that seemed so insurmountable.
I'm not going to lie to you. Some relationship stay....some go. But You will still be with you.
I'm rattling...I am hoping the best for you.