I am new to all of this although was diagnosed with an underactive thyroid 18 years ago - I have just plodded on with my thyroxine as prescribed by my GP and not thought any more about it. Since having breast cancer two years ago, I have also been taking tamoxifen, an oestrogen inhibitor and have been experiencing horrendous side effects from it - terrible joint pain, rapid weight gain (3st in 18 months), mood swings, depression, hair thinning and chronic fatigue. It was only recently that someone suggested these could be suggested these could be caused by my thyroid and not the tamoxifen.
I have spoken to my GP who pretty much poo poo'd the idea but did eventually order some blood tests which have just come back...
Serum TSH level: 8.51 mu/L (0.27 - 4.2)
Serum free T4 level: 9.7 pmol/L (12 - 22)
Serum free T3 level: 4.0 pmol/L (3.9 - 6.7)
Serum ferritin: 103 ug/L (13 - 150)
She also ordered a full blood count with all the elements about mid range apart from Eosinophil count 0.41 10*9/L (0.02 - 0.4) so this was a little higher than range (although I have no idea what it is!)
My GP has phoned and wants to increase my dosage of levo from 225mcg per day to 250.
What do you think? I am really at my wits end, 45 years old and feel like a 90 year old...
Thank you (and sorry for the long post)