Toxic multinodule goiter, 3.1 CM, Mayo appt

Well after (what seems like) I'm going bald, plus every symptom of hyperthyroidism. I was told I have a toxic multinodule goiter causing my hyperthyroidism. My levels are WAY off. I HAD three small nodules (5mm) that turned into five, all over 1CM, my largest 3.1. Even a physical exam gives me a rush so they won't biopsy it. I see an Endo at the Mayo this Monday. But my largest nodule has blood flow, many white spots or calcifications, long or oval not round and sharp edges. Any insite is welcomed! I'm 27 and female. Thanks!