What causes muscle twitching while being on Synthroid?
Noted your concern. Usually we don't aim to keep TSH so low except in the follow up of thyroid cancer. Hyperthyroidism can cause muscle twitching. Vitamin D deficiency and anxiety also cause muscle twitching. Random muscle twitching occur after viral infection.
Take sufficient calcium and vitamin D. If the twitching doesn't settle, in next few weeks, then you may need to see a neurologist.
Thank you for the reply.
Muscle twicthigs ( fasciculations) are seen commonly in anxiety. It is also seen in electrolyte disturbances ( low and high calcium, magnesium etc), After viral infections ( common), Certain drugs ( particularly anti depressants and anti psychotics), certain neurological disorrders associated with "motor neuron disease".
MRI is non progressive.
If the follow up MRI was non progressive, not to worry. High antithyroid antibody levels has been shown to cause encephalopathy in children ( hashimoto's encephalopathy). But this is uncommon in adults.
If your TSH levels are in normal range, synthroid dose is appropriate.
Well, you may meet neurologist again and get the blood works again. Request for a magnesium level in particular.
I myself had similar twitchings after a viral illness recently. Mainly on eye lids and arms/shoulders. It lasted a month and disappeared. These twicthings become obvious if you concentrate too much on it or if anxious. Physical exertion and tiredness can also worsen this.
May i suggest you something. Engage yourself fully wit family or friends for couple of days in some fun filled holiday activities. You may not even notice these fasciculations if you are engaged in other activities.
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