I just want to reassure you that you will get better. I had the very worst start. My restriction is/was fierce. It took me months to eat and drink like I should be. I barfed all the time, the gerd was wicked and disturbed my every night. My team told me to do my best and followed me closely. I was really dehydrated. I hated all my favourite foods, cooking smells made me heave. Every day I tried hard to get in my water quota. It seemed so hard to do it. Then one day I did it. I felt so much better when I was hydrated. I found times when my PPI work best for me.
I still hate my once favourite foods. Pasta is not on my menu, sweetners, oh no, also now allergic. Fish and chicken, especially salmon is rarely seen on my plate.
You are early out and your new stomach isn't quite healed, It will get better, you will be ok.