My baby boy is almost 6 months. He's been in daycare for about a month. He got diarreah this past Friday. It's been 2 days with it, he doesn't have fever the daycare ladies did tell me that there might be a virus since he wasn't the only one with diarreah. Should I worry and take him to the doctor even if he doesn't have a fever or should I just watch he drinks his formula?