so annoyed

I have tried everything I could think of. I feel fine one minute and then 30 mins later it all comes up. I can only really eat late at night and by 6 in the a.m I am back at it again. I feel sooo dehydrated, water is not working, I tried to just do fluids. I am taking a butt whooping. The strange thing is I have to have something sweet to take away the taste and I have to use vapor to rub to ease the nausea at night. before bed. I tried to eat non fat yogurt, it just seems like I don't have that much of an appetite. But, my stomach is empty I want to eat