So I tested positive yesterday have a sore scratchy throat, headache and sniffles. My 10 year old has the same symptoms as me is currently testing negative but have kept him off school as I'm assuming there must be a delay in symptoms starting and a positive test, as I first began to feel unwell Sunday. Has anyone else found this and would we take our self isolation period from the day symptoms started or positive lat flow? I'm just concerned he will miss more school as it's taking a while for a positive test to show but neither of us have the main 3 symptoms to order a PCR.