What is the medical term meaning a peculiar sensation appearing before more definite symptoms?

The medical term meaning a peculiar sensation appearing before more definite symptoms is prodrome. A prodrome is a set of symptoms that occur before the onset of a more severe or debilitating condition. It is often used to describe the early symptoms of an illness, such as the flu or a cold, before the more severe symptoms, such as fever or cough, develop. Prodromes can also occur before a more serious condition, such as a heart attack or stroke. In these cases, the prodrome may be a warning sign that something more serious is about to happen.