Well her GP would say that, wouldn't he? They all do. She has a goitre, so TSH isn't the only game in town. He can't say she doesn't have thyroid problems and he knows she has thyroid symptoms.
Tell her to get into the habit of always asking for a print-out of all her results. Make sure she gets her iron, ferritin, folate, Vit D and B12 levels measured. It's possible that if she goes on thyroxine her goitre might shrink. I don't have a goitre, so can't speak from experience, but I'd have thought it was worth a try before taking the step of operating to remove it.
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