It will definitely get better. I was sleeved on 10/25/18 and dealt with extreme nausea and taste changes too. One thing I learned to do was drink my water regardless of how I felt. If vitamins are bothering you then you can try vitamin patches. Gas, discomfort, nausea, vomiting and irritation are part of the healing process but its worth it. It will get better just hang in there. Oh and please follow the diet take your time.