INS and Hypoglycemia: Laboratory tests revealed a TSH level of 2.5 mU/L, which is the upper limit of the recommended preconception level, a high insulin plasma concentration at 60 min, and reactive hypoglycemia in 75 g OGTT (fasting; 60 and 120 min after glucose loading; the insulin and glucose concentration amounted to 4.4/52/23 U/L and 78/106/67 mg/dL, respectively).