facial changes

ive had suspectd TOS for over two months and doctors are talking through other diagnoses as they said no diagnosis is better than a wrong diagnosis. I was kept inpatient for three days and theyre fairly certain thats what it is. These past few months ive notice a fair amount if weightloss to the point jeans I bought less than a month ago are hanging off my waist. My face has also lost alot of weight along with around my eyes being alot darker and i over all just look quite unwell. Is this related to TOS by any chance?