you are suffering from an upper respiratory tract infection, kindly visit a physician to undergo clinical examination, to assess if you require the need of antibiotics. ( which probably you do )
if you have reason to believe, you have come in contact with a Covid positive patient, or if you have been to some crowded area it is recommended to check for your Covid status. you can check it yourself with a rapid antigen home kit.
Next Steps
in the mean time take, paracetamol for the headache and bodyaches,