 [ Symptoms ] our son will be 25 in november is he eligible for our family health plan even though he is not currently in school [ Disease ] the viral infection she might have caught from her school and there is no need to worry usually that is self limiting we adapt the policy of wait and watch unless there are no complications and i think there are none with respect to thyroid i suggest you do not panic tsh thyroid stimulating hormone of 5 12 at this age in the morning is normal her anti tpo thyroperoxidase antibody is also negative is there any family history of thyroid illness she will not have joint pain for a tsh of 5 12 the joint pain could be associated with viral infection i would suggest repeating tsh and free t4 after six weeks for further information consult an endocrinologist online   > <link>