car2202, I read through the thread not realising it was a zombie, and thought "sounds very much like hypermobility"
in which case, it is not urgent, nothing dreadful is going to happen suddenly, but your child's life is going to be an awful lot easier if you get a diagnosis and can access support if it's ever needed
both my dc have Ehlers Danlos, hypermobile variant, and though they are the first ever to have been diagnosed it is easy enough to see, looking back, that there is a family history of low body tone and joint problems
other signs can be: smooth silky skin, scars and bruises easily, ankles turn inwards (flat feet), complains of aches and pains in joints, falls easily, poor proprioception so appears clumsy
different people are affected differently: with me it's mainly my wrist and finger joints, with dd it's her hips and lower back plus an impressive tendency to bruise, with ds it's mainly scarring and bruising
some children need special shoes for ankle support, swimming is usually very beneficial