Thyroid cancer

Hello, in Feb I was referred to have my thyroid removed. I have lost 20kg in weight from September to now. I had ultrasounds and two FNAC. The nodule was classed as thy3f and I had surgery last week

i am none the wiser regarding my diagnosis. I have no thyroid… 

all I know is this 

37x32x23mm homogeneously slightly hypoechoic soft tissue nodule with internal vascularity. FNAC comprises of blood scattered follicular cells colloid colloid laden macrophages

unusual tumor 

did I make a mistake…