What are the symptoms before the onset of a fever?

Fever is often one of the first symptoms to appear for many conditions both viral and bacterial. Other early signs of infection or illness might be head or muscle aches, swollen or tender spots on the body, or a wound showing signs of a developing infection. This is not an inclusive list. Take Lyme Disease for example; a round rash develops at the bite location then a range of symptoms can appear that can, but does not always, include fever. The presence or absence of a fever is not an indicator of the severity of the disease in this case. Any set of symptoms that seem unusual should be checked out by a physician.