Congrats...and I am in the (exact?)same spot as your wife....but feeling ill, not being ill. If you cook dinner for everyone, God bless you, my husband just doesn't get the hint. He also wants to know why I am so tense....well, lots of reasons besides just the hormones and feeling ill and exhausted all the time.
One thing I noticed; the idea of taking the prenatal vit seemed impossible to me, but if I don't take it, I actually feel worse. Also, drinking gingerale really helped and getting fresh air. Don't talk about food or have anything scented around....ughh.
Sleep helps, too. If she's not throwing up all the time, I'd be wary of taking anything....try everything else first...this period should be over soon...I keep telling myself.