My doc says my Free T3 is a bit low but it's nothing to worry about.
I also have anemia, at 12.3. Again, she says not to worry much about it... probably because she sensed I'm a bit stressful and anxious/depressed, some conditions I've googled that are associated with a low free t3.
P.S.: I lost a lot of weight in the past several months.
EDIT: Saw something online:
Generally a low free T3 is associated with hypothyroidism. In most of the cases the very first sign of a disease related to the thyroid is indicated by the TSH abnormal levels.
However, many of the patients experience the symptoms of this type of disease even if the test results come with a normal TSH. Hypothyroidism is taken into consideration even if TSH levels are normal but T3 is lower. Thus, normal TSH low T3 can still indicated a thyroid related problem. Low TSH and high T4 and T3 suggest hyperthyroidism.
Low T3 levels are almost always linked to thyroid related illnesses, mostly hypothyroidism, conditions that are manageable and treatable with specific medication, under the endocrinologists’ observation.
If I lost weight though, it shouldn't be hypothiroid...