Is taking thyroxine for diet, unprescribed making me lethargic?
Patient : Although never diagnosed with an under active thyroid i started taking levothyroxine 25mcg once a day given to me by a friend, ive only been taking them a week and have now stopped because i have suddenly become extremely lethargic and feeling week. Could this be down to taking the tablets when i do not need to take them or because i may have an underactive thyroid and need a higer dose? i was tested 5 years ago but it came back negative.
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