1) i trust she is not cooking in Aluminium or non stick

2) her water supply is not treated with Alum or has Flouride added

3) Thyroxine tablets have fillers in them and cause real problems for many patients

4) Hypothyroid patients are often chemically sensitive and need only Nature Thyroid
I think even Armour thyroid has Titanium in it
You would need to check with Forest Pharmecuticals USA

Your friend has my immense sympathy as I am allergic to aluminium , was sensitive to my gold wedding ring because of a gold crown .......the tooth broke and gold crown came out ......back to wearing my wedding rings ok

Lichen Planus as a result of a leaking amalgam filling ......changed to white filling and no more LP .....so now having amalgan fillings removed slowly

Silver earrings aggravate my pierced ears

Add to this my Hypothyroid husband is chemically sensitive and toxic with thyroxine but in the UK they refuse to accept this and will not allow prescriptions for natural alternatives

He too has intense joint pains that nothing touches