I had papillary thyroid cancer with local metastasis 4 years ago. I had a total thyroidectomy and iodo-therapy. I take I high dose of T4 and normally my TSH level is around 0.5 or less. My thyroglobulin and anti thyroglobulin antibody levels remain low, however in a recent blood test, the TSH level rose to over 6. My T4 levels remain close to the upper limit where they should be for TSH suppression (at the moment free T4 is at 1.68ng/dL). Is there any reason why the TSH level jumped in such a way?
It will be over a month before I can see my endocrinologist again, which is why I'm here.
I also have dizziness and my hands tend to shake when I am eating and manipulating objects, etc.
The only medication that has changed recently is that I started taking sulfasalazine for apparent psoriatic spondyloarthritis, for which I'm currently in the processes of being diagnosed (I have a very painful left elbow, difficulty in raising my right arm above my head and pain in the right arm -- a recent problem, sacroiliitis and some lower back pain). I also had an MRI of my pelvis with contrast done 10 days before the blood test -could this raise the TSH? There is a unspecific 1.2cm sclerotic lesion on my pelvis - the MRI results have not yet been released by the hospital. I have an apparent adenoma on my adrenal gland for which I've done a adrenal-specific MRI exam. At one stage my DHEA-S levels were high but have fallen back to the upper limit of normal levels. Years ago they were far lower. A recent 24h urine test shows that I have excreted calcium above the the normal reference but bone density is normal. LH,, FSH and Total testosterone are normal. Still waiting on renin and fractional metanephrines results) I am a 57 year old male. Thanks