Thyroid UK
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Weakness with levothyroxine ?

Hi everyone , I started taking levo 2 weeks ago 25mcg , increased on day 10 to 50mcg.

From day 12 I have felt extremely weak on waking, legs feel like they are going to buckle and won't hold me . My neck feels like it won't hold my head . My breathing feels slow too .

Could this be the levo? I notice other members have said they had weakness and did better on NDT .

Any advice will be so appreciated. Xxx

2 Replies


It does take a while for our systems to gradually absorb levothyroxine and another post today was very similar to yours and I'll link it below. I hope you find it helpful.


Thank you for your reply Shaws x


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