Chinese tea - depending on what type, drink in moderation. Go for the "cheap" teas and not those like pu-erh etc. Pu-erh tends to be very acidic and can cause stomach discomfort (esp those of us who are already so uncomfortable!). Tea has caffeine, too. While it is okay to have one cup a day... having it all day long is not recommended.
SkyMommy: Many of us are familiar with what you are describing. My MS started week 5/6, too! The mouth wanna eat but the tummy not willing. The tummy wanna eat but the mouth not willing. But since we MUST EAT... so no matter how lousy we feel, we try to eat. Then we puke it all out and is such a total waste of effort. I am so thirsty as well - but I cannot take more than 2 small mouth. Else it will all come out. So I have been drinking some cold sweet drinks - those in packet, ice kachang, ice cream, fruits... whatever that might work. Hang in there... sometimes, it works to think MIND OVER BODY. When mind wins, the food is digested the proper way - they do say brain is the most powerful organ!