Based on the history the pains can be due to fever
as acute onset febrile illnesses present like such prodromal signs prior to full onset of symptoms. Fever with chills needs evaluation with complete
blood count, blood cultures, urinalysis and malaria
workup. Meanwhile using analgesics like acetaminophen or ibuprofen
will help with the symptoms. Decision of antibiotics or anti
malarial should be based after labs. as for your taste is concerned ,fever causes loss of taste buds( bald tongue) try to add some
ginger in warm water and drinks sips in between. this will improve the taste and don't use tongue cleaner.