Child 1 reception age, went back to school last week, snotty nose on Friday (school said ok to send her as no temp), developed into heavy cold over weekend but no temp or cough. She does however now have diarrhea. Child 2, toddler went back to preschool last week. Has not caught cold, woke up yesterday with snotty nose & his asthma has flared up so he is coughing lots (controllable by inhaler). No temp either. Do we self isolate based on these symptoms. Did look into getting a test but absolutely impossible.