Auckland mother Jo knew there was something different about her daughter, but felt she was seen as crazy for telling doctors, "My baby is too happy and likes water too much".
Eventually little Coco was diagnosed with Angelman syndrome.
A new short documentary, made for RNZ's fourth Wireless Docs series, delves into what the syndrome means for Coco and Jo.
This film was made with the help of New Zealand on Air.
Watch other Wireless Docs from the series: