Yep, agree with
@Friday , Ondansetron is the shit.
It's also waaaaay outta my price range, so I usually stick with the ole faithful metoclopramide for really bad hits of nausea.
I drink a lot of water and I take a prazole daily (there's several different prazoles that do similar things - I know a lot of folks with ptsd who take a prazole of some kind each day). I can get by on a low dose - I need to be able to eat.
Once the nausea is bad enough that I stop being able to eat it's not sustainable. And I'm prone to stomach ulcers.
Tbh, most of the options you've listed do SFA for me (at best - some of them would defo make it worse!) and that's largely because I tend to be too dissociated to notice mild symptoms. I notice my body isn't cooperating when it gets unmanageable, like I'm throwing up, or gagging over breakfast.
For folks
without ptsd? Sure. Bring on the peppermint tea. Regular folks tend to
notice mild nausea, when those sorts of solutions can still work.
But if your body is locked in a constant state of hyperarousal, nausea is occurring because your brain has shut down your digestive system. Throwing more random shit into your digestive system in the hope that it will help isn't necessarily gonna have the same impact it would for milder nausea.
Try everything once. And if all else fails, drink more water.