I have an underactive thyroid gland. For years, I took the same dose of Synthroid. Recently my doctor increased my dose. But my repeat TSH blood test is still high. What's going on?

I am a 45-year-old female. I have missed my last three periods. I am not pregnant. I also noticed discharge from both breasts. What could be the cause? Could this be from a medication?

Lately, I can't seem to stay awake. As soon as I sit down anywhere I start falling asleep. All I do all day is sleep. I have a cough and my voice is hoarse but I don’t have a cold.

I always feel cold, even in the summer. It's so bad now that it interferes with my work and enjoyment of life. What might cause me to always feel so cold?

Can a thyroid condition be brought on by stress?

My doctor ordered a blood test to check my thyroid level. My TSH is 1.32. How does that compare to a healthy thyroid?

How do you treat myxedema?

I've had chronic diarrhea for 3 months. My colonoscopy and stool both tested normal. My endocrinologist re-tested my thyroid and adjusted my medicine. I've kept a food journal, but I still get diarrhea no matter what I eat. Do you have any suggestions?

What exactly are calcifications of the thyroid gland?

In addition to calcium supplements, can foods that contain calcium lower the effectiveness of thyroid prescription medication?

I have been diagnosed with sarcoidosis, but my doctor wants to be certain and has recommended a lung biopsy. How dangerous is this test? Also, what is the least invasive test?

What is hyperparathyroidism?