I'm right with you on not wanting to take any more drugs than absolutely necessary, esp when pregnant. And I feel your pain on this one--I lost track of the number of times my DH got home from work to find me passed out on the couch with a bucket next to me--and yes, I have a full time job, but luckily my boss was understanding about my leaving early ALL THE TIME my first trimester! It's no fun at all!
I have two recommendations for you. 1) a book called "The Morning Sickness Companion" It has all kinds of information about what causes morning sickness (and, of course, points out that this is a HUGE misnomer, since many of us have "all the time sickness"!) and also different things that might help. I think different things help for different people. 2) You should also try to find a good health food store near you, and ask for their recommendations for an herbal tea to help. You will need to make sure you talk to someone who knows what they're doing, and read the label carefully, since some teas are great for your when pregnant, and some not. I went to Mike's Health Food shop on the NE corner of White and 75 in McKinney--but that's a long way away for you. Ask around and see if you can't find a recommendation for somewhere local. And good luck! I know it's awful, but it will pass, and of course the baby is worth it in the end!