On Mon, 3 Aug 2015 07:31:35 -0700 (PDT), Dave Nadler
wrote:

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.

Oh yes, I always ensure my seatbelt is good and tight after I flew
through a thunderstorm over the straits of malacca on approach to
kuala lumpur about five years ago.