My body temperature got really hot and woke me in the middle of the night then heart started to race.

Hormonal changes?: Those symptoms possibly due to menopause if associated with night hot flashes, sweating, irritability, mood changes, vaginal dryness, stress incontinence/leaky urine, insomnia. Check with your doctor for a better assessment and good history and physical. . Remember, menopause its not a disease, it's a normal stage in the life of a woman.