- Symptoms: palpitations, weight loss, anxiety.- Labs: ↑ FT3 (6.25 pg/mL), normal FT4, ↓ TSH (0.03 μIU/mL).- Postpartum thyrotoxicosis diagnosed.- Treated with Neo-Mercazole.- Anti-TPO and anti-Tg antibodies were not assessed due to cost. The gene discussed is TG; the disease is Anxiety.