Omg, I've been on Zofran my entire pregnancy - despite taking it, I still occasionally vomit but it's much less than before & I too am 35w3d pregnant. I too have only gained 12 pounds. My ob says some women just have more nausea - he then told me that his wife suffered from it during all of her pregnancies the entire time. I don't think he was very sympathetic :-(((.
I sometimes get a little queazy too. I have only thrown up three times during this pregnancy though.. it's my first viable pregnancy. I was worried at first because I wasn't getting sick and I've often heard that is a sign of a not so strong pregnancy.
I hopet things get better for you. My sister LOST like 30 Pnds with her pregnancy and the baby arrived very healthy. She did not go one morning without puking. =)
I've heard some women can be sick the entire time? My grandmother was sick with both of her children, the whole nine months yet my mother was not and niether was I. What has your doctor said about it? Your baby is actively storing iron at this time so you will need to make sure you get enough of that, just to keep up your supply after he/she is born. Calcium is also important.