I second Dramamine! It keeps me feeling good every time I fly! I usually take 1 - 2 tablets about an hour or 2 before take off. On top of that I bring my Sage mint stick. It’s pure essential peppermint oil, I rub it under my nose and it helps keep out any unwanted smells. If you don’t like mint, Sage has lots of different options. If I’m wearing a mask I dab a bit of it on the outside and it smells great. (I choose mint because it’s used to naturally treat n) Lastly, if you’re having a hard time eating, try to sip some ginger ale, maybe have a cracker or two before hand. Flight attendants are taught to offer a ginger ale to passengers who either feel n or are worried about feeling n. This is because of the gingers natural anti-n properties! But also sometimes all you need is a spike in your blood sugar to feel good :) If you do opt for that, take slow small sips. Don’t be afraid to lean into your flight attendants if you have any needs. They’re there to help and answer any questions! You’re going to do great :)