I'm posting this one as a sort of 'pay it forward' post, because a post like this started me down the path to figuring out some of my own issues. So this is for all the people who are still struggling and searching, and who would swear that they are reacting to water, or to salt. Or that it feels like they are allergic to water or salt, sometimes.
I'm here to tell you that you are not losing your mind. It is entirely possible to react to water or salt. Or rather, it's possible to react to water, or to contaminants present in water and salt due to our current processing.