i'm wondering why you would have your tsh tested twice so close together. usually with hypothyroidism (low thyroid function) it takes weeks of medication therapy to see any change in tsh levels so it doesn't make sense to me your doctor would have you tested just a few days apart. that said while a tsh value of 28 is high it should be fine to wait until thursday to see your doctor. as to why your tsh seems to be going up without you experiencing symptoms well many things can cause this. your doctor will be able to give you some possible reasons for this and (hopefully) get you on a path to better control. best wishes to you! staying at the wrong dosage amount for too long and fluctuate your levels and cause them to change and go from under to over.
what would make my tsh levels suddenly jump to critically high level when i feel the same? . i take synthroid 1. 25 daily and yet my tsh is now 28. 3 increased from 23. on friday. why would it jump so quickly? my dr. is on vacation and i just want to make sure this is ok to wait until thursday when he comes back. .