There are ranges, and if your range has changed noticeably, that shows you are out of the range for how
you are supposed to
be.. or you previously were. ESPECIALLY when it
thyroid issues. Next time you have thyroid tests done, check for tsh, free t4, free t3, hashimoto's antibodies, and grave's antibodies. If you're on thyroid medication, you need to be seeing an endocrinologist. Well, okay.