swimming - it depends on the person I think.

I have difficulty swimming because I have vertigo problems. Noise and crowded places bother me as well so busy public pools would be out of the question and the ocean, as much as I love it and have half lived in it all my life, seems a treacherous place when dizzy.

I don't enjoy going to movies at a cinema either - same sort of reasons. Watching something at home is ok for me though I need to watch it in stages rather than alll in one sitting. [p.s. I've always been hypersensitive to certain sounds but much worse at the moment so the variation in sound levels in a theatre would be intolerable to me]