Thyroidperoxidase 1250, all other thyroid test normal, cysts on thyroid 1.3 cm, swollen lymphnodes on 1 side under jaw and back of neck but not sick?

hashimoto's : You should follow up with your doctor. You likely have a condition which is called- hashimoto's thyroiditis- which is a chronic inflammation-caused by an autoimmune condition- which is presented with significant level of thyroid peroxidase antibody and /or thyroglobulin antibody. See your doctor and have further detail discussion with your md.