Hi., I can understand your concern
Reports suggesting hypothyroidism.
No need to worry.
It is not due to whey protein.
It's due to hormonal changes.
Will be reversed with medication and proper diet.
Next Steps
you need to be started with low dose of thyronorm.
may need to add few more meds regarding your symptoms.
Health Tips
consult online for prescription
avoid processed and refrigerated foods
regular exercise and yoga.