I have hypothyroidism which has been treated for about 20yrs now with thyroxine. The dose steadily increased over the years to 175mcg. In 2012 I was diagnosed with rheumatoid arthritis and started treatment with methotrexate. In January this year my blood test showed I was receiving too much thyroxine and was told to drop the dose to 150mcg. In April I was tested again and told to drop to 125mcg. In July I was tested and told to drop to 100mcg. I don't know if it's the over treatment or my RA meds but my hair is painfully thin and really upsets me. I have also spent the past 2 yrs working really hard to lose 6st but since January I've not been able to lose a thing. In fact I have to live on a calorie controlled diet just to maintain my weight. I can't understand why after all this time it's taking so long to get the right dose sorted. Could anyone offer words of wisdom on this. I have posted previously a while back but had no blood references but now I have the results from April and July.
April 2013 - TSH 0.10 / T4 23.3 / T3 4.2
July 2013 - TSH 0.10 / T4 20.5
Any advice would be much appreciated. As part of my RA treatment I have regular fbc's and these have been fine.