The pain is a warning that the body is becoming too hot.

VOA: special.2010.07.27

Thou art more lovely and more temperate: Rough winds do shake the darling buds of May, And summer's lease hath all too short a date: Sometimes too hot the eye of heaven shines, And often is his gold complexion dimmed;

VOA: special.2010.01.06

One story says he ate too many hot cakes.

VOA: special.2009.01.24