DS aged 15 is not feeling well today and says he feels like he has a temp. Readings have been no higher than 37.3. However, he has always had a lowish normal body temp of roughly 35.6 so todays temp is relatively high for him. But everything I have read says this it has to be over 37.8 to be a temp, end of. From a covid perspective this is making me slightly twitchy - can anyone medical advise whether I ought to get him tested?