Normal termp is 98.6 °F(37 °C). You are only slightly below but low body temp can also be a sign of hypothyroidism. Here are some other signs fatigue, weakness, lethargy, weight gain, depression, memory problems, constipation, dry skin, intolerance to cold, coarse and thinning hair, brittle nails, or a yellowish tint to the skin. If you have a few other symptons I would see your Dr. and get a blood test to check your thyroid.