My mom & husband were very concerned too.
My doctor started me on phenegren, it knocked me out and wasn't a miracle worker. With my first pg I would 1/4 the pills and take them every 2 hours (instead of 1 every 4) to try to help cut the sleepiness & nausea. I could function, but would still get sick. Chewing gum, hard candies, goldfish crackers, sprite & gingerale temporarily helped.
With our second pg I started on phenegren again, but the 1/4 pill did nothing. Taking a full pill I couldn't function, and even when I moved I would still get sick. Dr switched me to zofran which helped - if I could keep it down. She switched me to the dissovable pill - its NASTY under the tongue, and worked miracles - for a week. My sickness kept getting worse. I was losing weight and couldn't care for our 18 month old without vomitting - often. My mom brought home every ginger product she could find - chews, hard candies, syrup to make tea, etc... I also put the motion sickness bands on both wrists. I was still so ill. I ended up in the hospital for an afternoon for fluids - dehydration makes nausea even worse. After the fluids I felt better, but we didn't take any chances. From that afternoon on my mom took our toddler, and my husband set up a schedule to get me food, drink & medication. I spent the next several weeks on phenegren and as unconscious/still as possible. Thankfully after 12 weeks I felt human again. The first pg I was sick till 18 weeks, so we were worried. My girls are 3 & 1/2 and 18 months now - both healthy.
A friend of mine that delivered twins would have her husband wake her up to eat some crackers, she'd doze again and then when she had to get up her stomach tolerated it better. She also took frequent naps (lunch time, after work).
Also I discovered in an unrelated hospital trip that zofran dissovable could come in a minty flavor - not great, but better than the original I took.