Ur age when u got POIS? How old are u now? Did 1st O give POIS or it came later? Was there change in life when u got POIS(diet, stress, medicine, probiotics/antibiotics, contact with pathogens, etc.)? How POIS changed with years in terms of symptoms, length, intensity? Did u always get it postO once getting POIS or 1st they weren't consistent? Ever experienced O with 0POIS without treatment either randomly or under specific circumstance e.g. when ill, etc.? Do u got abnormal medical markers, if so, which? Any relative who has similar symptoms?