have you checked if has had a fall somewhere or hurt while playing? please do not ignore and take him to a doctor. hope he gets well soon. as a mother do understand how traumatising it can be when kids fall ill. take care
possible cause of a severe headache with radiating lower back pain. son came home from working out after school on thursday and started running a fever on friday. fever has subsided but still has a headache and lower back discomfort that runs down through his rear and into his legs.