Would you lose weight with a small increase in thyroxine

[Goodytwoshoes]

I have never lost any weight for years, weight just going up and up.....thyroxine was increased to 50mg from 25mg in April and I have lost 4kg, but I was also diagnosed with erosive gastritis a week ago (following gastroscopy) and await biopsy resultsSerum TSH is 1.81 (0.27 - 4.2)

Serum free T4 14.4 (10 - 21 )

Serum free triiodothyronine 4.9 (3.5 - 6.5)

Vitamin D 62.5 nmols (up from 40nmols)

Magnesium 0.67 (0.7 - 1.0) it has increased from 0.62 and I am taking 500 to 700mg a day

Adj calcium 2.34

Phosphate is 1.11mmol/l (0.8 - 1.5)

PTH 8.6 pmol/l (1.3 - 7.3) down from 9.6

Can I improve as I still don't feel great, but I have also developed nightsweats waking up soaked and literally shivering if I go to the bathroom - I am 67 years old, the majority of the time I am still feeling cold

[Helloit]

I don’t know if levothyroxine would cause your weight loss personally it hasn’t caused me lose weight I hope someone who knows more about how to interpret your results will be able to answer your question.

[tattybogle]

Re. the over range Parathyroid Hormone (PTH) .... this could be causing some of your symptoms , but parathyroid hormone is not something i know much about.

Hopefully others who know more will answer ... SlowDragon ? ...... if not, put up another post with "parathyroid" in the title, so it will be more obvious.

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Are these results after taking *50mcg for at least 6 wks? ( *have edited typo, sorry )

How many hours before test was last dose levo taken ?

What time of day was test ?

TSH 1.81 (0.27 - 4.2)

freeT4 14.4 (10 - 21 )

freeT3 4.9 (3.5 - 6.5)

Could the extra 25mcg have caused the weight loss / night sweats ? ,... well ,

.... it's still a very small dose, and the TSH and fT4 certainly do not suggest overmedication , so it is unlikely that overmedication could be causing 'unwanted' weight loss... but as you were previously undermedicated and have excess weight , then it is possible that the better dose being is now allowing your body to loose some of that excess weight .

But as you have Ulcerative Colitis /some intestinal surgery, and now have another gastric issue on top , i would think it is likely that at least some of the weight loss is related to that,

[Goodytwoshoes in reply to tattybogle]

The higher dose started around April 4th and the bloods were done at 9am June 14th (9 to 10 weeks) it was about 30 hours from last dose of thyroxine - the previous TSH test was 3.5 and free T4 was 11.3 on April 4th