This is an interesting post because we have never been this age [and nothing prepares us for it] so don't think it's helpful for a poster to say 'get over it'. We are not really complaining, but age does come as a bit of a shock really, not only the intimations of mortality, but the everyday surprise of not moving about as speedily as we used to [I can't run for example.]That stiffness when you have been watching tv or reading and then get up and wobble off to put the kettle on [!!!]Catching sight of yourself in the mirror, looking old and frowning like your Grandma.Bending over flowerpots in the garden and twinge-ing when you straighten up.Getting irritable.All sorts of things.
And it's all new to us!