On Sunday, August 2, 2015 at 4:37:40 PM UTC-4, Caecilius wrote:
I'm a nervous flyer who spends a lot of time as a commercial aircraft
passenger. My number one anxiety is that freefall feeling when the
plane drops, like you'd get on a rollercoster (I don't like those
either).

One thing not mentioned by other respondents:
Make sure your seat-belts are TIGHT.
Then wriggle around a bit and tighten again.
Tight belts will make any reduced-G sensation MUCH less uncomfortable.

Have Fun!