question: Hi doctor,I am 58 years old. I have been diagnosed with hypothyroidism 20 years ago. I am on Eltroxin medication since then, 100 mcg daily and twice a week 150 mcg. My T3, T4, and TSH are normal as I do blood analysis every six months. I noticed I am gaining weight from three months although my diet has not changed. Should I increase the dose?