What condition could cause first underactive thyroid and now overactive thyroid?

Published: January 2, 2013
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I have had symptoms of underactive thyroid for years but blood tests were always "in the normal range." Now I have some symptoms of overactive thyroid, and blood tests show no TSH, free t4 of 30, and free t3 of 11.8 plus TPO antibodies of 78. My general practitioner and consultant want me to go on Carbimazole (in the UK), but I am already 2 stone overweight.

Do you have any idea what my condition could be? Many thanks.

Answer

Ask your physician, but suggests likely Grave's Disease (Hyperthyroidism), and I concur with going on thyroid-blocking medications. It is not uncommon for thyroid to alternate between too high and too low, putting people on an emotional roller coaster and requiring frequent fine tuning and adjusting of treatment. Occasionally, Hashimotos Thyroiditis can also cause occasional high thyroid though mostly low thyroid.

I hope this is helpful for you and your physician.

Love and Blessings,

Dr. T

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