Hi there,
You appear to be Hypermobile a condition that affects a small percentage of the population. you can get information on this condition on a site www.hypermobility.org this is the official site of the hypermobility society in the UK and is patroned by a Professor Rodney Graham who is in charge of the hypermobility clinic in University College Hospital in Euston Road in London. They take referrals nationally if you are looking for some expert advice, your GP could refer you. Some people get aches and pains and other things associated with hypermobility when it gets called benign joint hypermobility syndrome, but, as the other poster above suggests you may not get any of these problems and just be hypermobile, with no associated problems. try not to do party tricks with your joints as it can cause undue stress to the joints and try to stay muscle strong so something like swimming could be a good sport to get in to. you will probably find the females in the family have similarly mobile joints as it tends to run down the female side. hope this helps.