All during chemo my thyroid hormone levels crazy. I have been on thyroxine for 15 years. Now, a year & a half after finishing chemo, my TSH is 28 (way off the chart) but t4 normal at 15. Very strange.
So, doc wants a scan to see if there is a tumour in pituitary gland, rarely malignant but still needs to be sorted he says. Has this happened to anyone else?