When I went to the doctor with my genetic test in hand my doctor said that I looked 5 months pregnant. Indeed I did. I had also been asked several times when my baby was due, when I was not pregnant. Now, I have a reasonable answer to that; I am just bloated by celiac.
I am 6 months grain free and am starting to deflate.
I went through times of intense hunger like you described. I also have times where I am not hungry for several days and force myself to eat. I treat my celiac with supplements, excercise, and sunshine. My diet is of notable importance. You mentioned B12 and a sublingual B12 has been working for me. I am improving and am so glad that I found out what the problem was and it can be helped.
i find now i only look pregnant after accidental gluten...then its right back to the way i use to be. i have been gluten free since beginning of april... and dealing with intense hunger now. i will try b 12 shots and see if that helps. i go threw days of coping and then days of depression but thats only when im out and about and cant eat on the go like the rest of my family and then find myself having to have my husband drive round and round trying to find something i can eat after everyone else has. just frustrated. i am happy though that i did find out what is wrong....even though it sucks. my life has improved so much....im happier for the most part and im not sleeping my life away i have energy again. my husband cant believe the difference. just had a bad couple days.......