Sorry I haven't kept up with this. I'm glad you're home. A friend of mine had a baby with extremely bad PUV, they discovered it in utero because of his abdominal measurements, so checked the kidneys. By the time he was born his bladder was so swollen his lungs hadn't developed properly. He had to have a special formula that was made up after testing his blood every time. And yet, a couple of years on you wouldn't know any of this apart from a long term catheter. They can do amazing things, and Ollie thankfully sounds like his is mild, with just one valve affected. I'm glad they found the cause and you're all home safe with your family.