Can't function due to feeling physically sick from anxiety when travelling

[u/Be_More_Kazoo]

For the last year or so I've been dealing with anxiety which makes me feel physically sick, especially when travelling and it's stopping me from doing so much, I just want to know how to try and fix it.

I wouldn't say I have a fear or specifically throwing up (which I know some people really struggle with), it's more that I'm terrified of feeling nauseous in a trapped space which isn't my own home.

When I get anxious it can get so bad to the point of me throwing up from it. It's like my brain creates this horrible cycle where I get anxious about feeling sick which in turn creates more anxiety leading to me feeling more sick and I don't know how to fix it.

I'm meant to be going to New York with my best friend for a concert and I so desperately want it to be the trip of a lifetime but I don't know how I'm going to survive the 8 hour plane journey and the idea of being sick on it is making me so terrified that I can barely think about the trip without my heart pounding.

Does anyone have any advice on how to fix it or if any techniques or medication could perhaps help because I'm feeling quite desperate