I found out at my 12 wk scan that i had had two babies and unfortunately one of them had failed to continue growing. The sonographer said it wouldn't affect the baby that had survived, but i can't help but worry about my baby. My anxiety is through the roof. Is there anyone who has suffered this and the surviving baby been okay and were born healthy? I suffered the 'vanishing twin syndrome' before 11 wks somewhen, had no symptoms (maybe some cramps). I'm trying to figure out whether i would know if something had happened to the other baby as i didn't have any symptoms the first time.