Do any of you smart and wonderful readers have any experience or references for what it means/what can be done to address “high normal” thyroid stimulating hormone (TSH)?

Jill’s results came back totally within the normal range for “healthy adults” (0.35-5.5) but above the 2.0 recommended for women trying to conceive. (I don’t know what the unit of measurement is.)

They’ve ordered some additional bloodwork, but of course we’re worrying in advance of information. And “Dr Google” hasn’t said much beyond that women with thyroid issues seem to have trouble, particularly with miscarriage.