Age 4 - DS walked late, multiple visits to GP as I knew something was 'wrong', couldn't climb in parks, complained of being tired after walking, feet so flat that inside ankle bone on the floor, dislocated elbow a few times. Lots of physio improved things, along with orthotic insoles and boots.
I have written 'hypermobile, tires easily, more prone to dislocations, does not prevent any activities' more times than I care to remember. It's a bit of a lie about the not preventing activities though, as he was advised not to play rugby/contact sports, he's not good at running, and his handwriting is slow and impaired - those weird thick pens help.
Teenager now and luckily not got any worse, as was warned he could be in a wheelchair in 20's.
ETA and constipation - even gut action is relaxed