Unfortunately Dave,
Yes I did. First off, let me point out that I could never get myself sick. Only when I had an instructor flying and pulling "G's" or a crazed SNA who believed that TACFORM is flown throughout the entire throws of the stick. As a student, I was able to get sick and continue flying. Others were completely incapacitated. Eventually, I developed a g tolerance and I was never bothered again. You can work through it. I promise.
If it gets to a point that you become incapacitated, the Navy will send you to Pcola to build your g tolerance. The spin and puke is not a fun experience or so my former studs told me. It entails sitting in a chair which spins at a constant revolution and puking until you can't anymore. You do this twice a day for 6 weeks. The idea being, you build a tolerance to your inner ear and at the end of 6 weeks, you can sit in the chair and not puke.
Most of the time, SNA's getting sick is a factor of them just being nervous. If you find you are prone to being queasy, don't drink anything caffienated before you fly. Water is always good. Doc's told me to eat a pastry to settle my stomach. I'll be damned if it didn't work. Let me reiterate that I could never get myself sick only when the stick was given to someone else and we were in an agressive hop, mainly TACFORM. Good luck. Semper Fi! Frumby
Attack Pilot
Major USMC