Why does my body heat up for no reason?

Possible Reasons for Unexplained Body Heat

Your body may warm up without any apparent cause due to several factors. These can include hormonal fluctuations, such as those occurring during menstruation or menopause, as well as external conditions like high ambient temperatures. Additionally, stress and anxiety can trigger a fight-or-flight response that raises your body temperature. Lastly, certain underlying medical conditions might also contribute to this sensation. If this becomes a frequent occurrence, it may be advisable to consult a healthcare professional for further evaluation.