Your next patient is 32 year old Jenny who attends as she is upset that her 13 year old son has recently been diagnosed with Slipped upper femoral epiphysis (SUFE). She is frustrated that despite presenting to the GP several times over the last 2 weeks it has only just been diagnosed formally by the hospital team. You discuss his initial presentation.

Which of the following factors in his presentation are least in-keeping with SUFE?