Candida albicans is part of your microbiome, and found in many areas of the body like the mouth, throat, genitalia, urinary areas, and intestines.  Some individuals create an environment that is a breeding ground for overgrowth.  The most common causes are compromised immune system, using certain detergents, chronic antibiotic use, oral birth control, excessive sugar intake, or diabetes.

The thyroid gland secretes horomones that control how quickly the body burns calories and uses energy.  When the thyroid is underactive, it doesn't make enough hormones and common symptoms are fatigue, intolerance to cold, slowed heart rate, weight gain, muscle weakness, hair loss, dry skin, cold hands and feet, decreased sexual interest, insomnia, infertility, puffy face, slow speech, tinnitus (ringing in the ears), and heavy menstrual periods.