Hi. As part of a routine fertility work up, I was told my TSH level was 2.5 and TPO antibodies were 283 (no TGO antibodies). My doctor prescribed a low dose of Synthroid to reduce TSH but she isn't concerned with my TPO number. I don't have a known family history of thyroid disorder and I don't have any symptoms but I'm concerned with my TPO number. Does that number mean I will likely develop symptoms and thryoid disease at some point? Also, my TSH one year ago was 1.75. Is it common for TSH to flucate? Thanks.