05-09-2023-1517 - prodrome (prodromal symptoms, etc. ; early sign or symptom or set of signs and symptoms ; (pre-diagnostic indicators (e.g. of onset of disease, of disease, etc.), time, condition, etc.); etc.)

In medicine, a prodrome is an early sign or symptom (or set of signs and symptoms) that often indicates the onset of a disease before more diagnostically specific signs and symptoms develop. It is derived from the Greek word prodromos, meaning "running before".^[1] Prodromes may be non-specific symptoms or, in a few instances, may clearly indicate a particular disease, such as the prodromal migraine aura.

For example, fever, malaise, headache and lack of appetite frequently occur in the prodrome of many infective disorders. A prodrome can be the early precursor to an episode of a chronic neurological disorder such as a migraine headache or an epileptic seizure, where prodrome symptoms may include euphoria or other changes in mood, insomnia, abdominal sensations, disorientation, aphasia, or photosensitivity. Such a prodrome occurs on a scale of days to an hour before the episode, where an aura occurs more immediate to it.^{[citation needed]}

Prodromal labour, mistakenly called "false labour," refers to the early signs before labour starts.^[2] 

https://en.wikipedia.org/wiki/Prodrome

The prodromal symptoms are fever, headache, and myalgia, which can be severe, lasting as long as 24 hours. 

https://en.wikipedia.org/wiki/Campylobacteriosis