Sounds to me like ya'll need to go see a NUCCA or Atlas Orthoganal (A/O) Chiropracter. And NO NO NO they do NOT take hold of your head & turn it & then give a twist & 'POP' goes your neck. The way you describe the vertigo/nausea it sounds like it might be the joint in your spine that is out is the top bone/joint of your spine called the "Atlas" It is the one your head actually sits on. If it gets twisted the teeniest tiniest bit around the brain stem you can have Vertigo forever. Anyway the only Chiropracter or Doctor of any type that can or has any chance of adjusting that area of the spine is a NUCCA or A/O Chiropracter. I have been to both types. They barely lay hands on you. So when vertigo/nausea happens to me I go to see Dr G (NUCCA Chiro) & have a treatment & it goes away instantly.

Just my suggestion to ya'll. If you want to stop having to take all those motion sickness pills this might be one way to do it.

No matter what you do, good luck.

DebbyV