My son will be a year old next week. Just started daycare last week so I understand he will be susceptible to germs. He has had cold symptoms for almost 2 weeks. During the first week, he had temp for 1 day, loose stool and runny nose. Second week, he had totally white stool - and continued with cold symptoms. Stool darkened to a lighter grey. Was seen by Doc yesterday - saw stool (no testing done) and said possibly virus passing his system. Today he continues with cold symptoms and loose grey stool with temp of 101.5. Should I be worried??