Re: she was swept with airsickness
Again, you have used a string of words in your title that doesn't appear in your post. You're not asking us about "She was swept with airsickness" (which is wrong). You used "strange mix of airsickness and homesickness swept over her" which is (almost) right. I say "almost" because you omitted the indefinite article before it.
Please take more care with your thread titles.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.