Low TSH suggest that Armour dose is too high. TSH should be no lower than 0.1
Preferably between 0.5 to 1.0 or 1 to 2 if she feels well at those ranges.
GL,
January is Thyroid Awareness Month, a month when various organizations put together informational efforts to help us all learn more about thyroid disease here in the U.S.
January is National Graves Disease Awareness Month
National Graves' Disease Awareness Week 1/7 thr 1/13
TSH seems a little low, she may not be getting enough replacement hormone. It is hard to tell without lab reference ranges on the T3.