Sounds like something you see on social media.
Balance is not affected by sound.
I do not know why I am resilient to the roughest of seas. Maybe try a fishing trip on a small fishing boat in bad seas, swim in big waves, surf in a storm. Very little bothers me about the sea, I have been swept out miles by a rip on a surf board in double overhead (12ft) waves, it took two hours to get back to shore and whenever I have been on a vessel in very bad seas I can walk around with surprising balance, even surprising the crew. A big storm is free and unexpected entertainment, but there are other things that are guaranteed to make me hurl so I am not strong stomached, I simply do not feel sick in the sea, I feel quite at home bobbing up and down in an almighty swell, it is almost comforting. I remember strolling around on a very rough crossing as a child, the ship could not dock, almost everyone was hurling, lying randomly on the floor or holding on for dear life. That day I realised what the annoying threshold lip on the ship toilet door was for. There was a person in that room flat on the floor and the collective vomit of many people was rolling from one side to the other, splashing them as it came back and they did not have the motivation to move, they insisted I left them alone and close the door, poor fellow. I would assume being more familiar with the sea will help you build up tolerance. Being sober will also help a great deal.