Detailed text transcripts for TV channel - KGO - 20130115:10:49:00
>> my knees hurt. my back hurt. i had high blood pressure. i was prediabetic. i was going down a bad path. >> reporter: amy smith knew she was big. but since the scale only went to 300 pounds, she didn't know how big. she finally weighed herself one day and was shocked when it said 427 pounds. >> i sat and cried. i had no idea i had gotten that heavy. >> reporter: but she stayed that way for years. when she had her second daughter, the c-section went terribly wrong. because of her weight. >> everything hinged back upon my weight. depression, my knees hurting, not being able to move. i figured ...