Toby Peart began experiencing the common sensation - normally associated with growing pains - alongside pain in his left leg in April last year and his symptoms became progressively worse over the course of several months

Toby Peart, 13, began feeling pins and needles in the leg in April last year and his symptoms worsened over months.

Toby Peart began experiencing the common sensation - normally associated with growing pains - alongside pain in his left leg in April last year and his symptoms became…