I go to Cabarete every year, only drink bottled water etc. But I get the sh_ts , every time after about 1-2 weeks, and it lasts up to a month. I have to be near a bathroom within 5-10 min after eating. I know it's a delicate subject, but has anyone else had this problem? They say , don't drink tap water, but how can u have a shower and not get tap water up your nose, etc. .