Public pools

Low key bitta ocd I don’t like the idea ppl could have gross feet or watt or something bare feet on same pool I walk on in pool and that all going in water and they all dirty and we. Anyways ages ago I went swimming in public pool andnext day in sick for a week. I have a gym memebership so I can swim but idk if I should use it. Quick question, do ppl pee in public pools? Also thoughts advice