Last week my 9 year old son was diagnosed with strep. This week his twin brother started with the same symptoms...headache, bellyache, fever, sore throat. Fevers have been has high as 102.7. Pediatrician called in amoxicillin. He has had 4 doses. She is still running a fever up to 102 and occasionally as low as 97.5. When he was 97.5 earlier he had blue lips and chattering teeth. I warmed him up and his lips were the same color as his cheeks. So at this point, as a nurse, I m thinking he may not have strep.