Help! Possible DMD diagnosis

Hi,

I have a wee boy 4 years old (almost 5) he has just had a physiotherapist come take a look at how my boy moves she suspects DMD. For a couple years my mum suspected he had twisted hips or legs as he walks and runs with his feet pointed outwards and has always been a bit clumsy. He has always had low muscle tone (which others in our family have) and was slightly delayed in crawling and walking however it was nothing they were too concerned about. He has always been nervous about playing on playgrounds (I probably didn’t help as I was nervous about him on big playgrounds hurting himself due to him always falling over his feet when running and walking) however he’s recently been getting much better playing on playgrounds, climbing up onto things, climbing high walls and even climbing up slides by himself. I’m under the impression if he has DMD it should be getting worse and unable to do these things or am I getting my hopes up thinking it could be something else? Has anyone else’s kids that have been diagnosed with DMD been playing on playgrounds well at the age of 4/5 I feel like he’s been getting better, I know I should wait for a diagnosis but I’m loosing my mind and can’t stop crying and with Christmas coming up there will be a delay in finding out the results.