A mum who was told her two-year-old son "just needed potty training" said his symptoms were initially misdiagnosed as constipation before they found out he had a deadly disease.
Sheena Harrad, now 37, took son Adam to the doctors when she grew concerned about his lack of verbal communication and increased crying, aged two. She said doctors said he was constipated and just needed potty training.
But Sheena was unsatisfied and was in and out of A&E with Adam, each time being told there was nothing wrong, despite him having leg pain.
