hi,
my skin never itched but it appears it's common.
Skin looks far better, almost since the beginning. Being hungry and thirst also seems normal; your body is nutrient-deficient so it makes sense that it want to catch up.
Weight gain or loss would also (unless there are medical conditions) be affected by how undernourished you are. Sugar cravings are common as you now aren't taking in the calories from alcohol. I gained weight because I indulged these cravings and I believe the citalopram I take also causes sugar cravings. I've cut down on the meds and increased my exercise and am losing the excess now. Just continue as you are and keep aneye on your weight - if you eat well and exercise moderately you should have no major problem.
I had vitamin B injections weekly for 3 months; now I have them monthly
All the best!