just what could be

what are your other symptoms?
As you know, thyroid is master metabolism regulator and it sets body temperature at exactly 98.6 and if below your metabolism is compromised. Everything goes wrong when body temperature is low: pathogens are not killed efficiently, enzymes are not working properly, energy burning is wrecked. Although thyroid is the CEO in the business of metabolism, true king is my beloved liver: it is the liver who converts T4 to T3 and the amount of free T3 is what you really what to have in abundance. Not enough T3 = metabolism is completely srewed up.
Stress could really hurt, yo-yo dieting and alike and simply congested liver/gallbladder. And if liver malfunctions almost everything goes amok. Tweet