My 4 month DS has a heart defect called a PDA which means a vessel near his heart has a hole that is pumping too much blood into his lungs. A consultant from great ormand street said the hole is too big and will require surgery in a few weeks as he has breathing issues and is under respiratory distress. IM SO SCARED and any advice would be appreciated. He is currently being NG fed. We've been in hospital for weeks so honestly it's been a really tough journey to motherhood.