I seem to have all the symptoms of subacute thyroiditis. Have been to the doctor and had blood tests, which showed low TSH, etc. Diagnosis pending, but I m trying to research all I can in the meantime. I ve had about 6 weeks of neck tenderness, painful swallowing, and daily fevers. When I read the symptoms of subacute thyroiditis, it seems a perfect fit. However, about two weeks ago I suddenly also developed a nagging, shallow cough that never lets up and leaves me short of breath. The only hyperthyroid disease I can find that includes a cough is thyroid cancer. My question is, Is this sort of cough ever associated with subacute thyroiditis?