Alphabet Diary - A for Aging

I'm 52 this month.  It's only taken me half a century, but I feel like I've  finally finished my practise round in life and I'm now ready to start it for realsies.  I've done the experiments and trials, tried different things, and now I kind of know who I am, and what and who are important to me. I have mentally and emotionally grown up.  I'm not saying I am totally wise and mature, (that sends shivers down my spine for some reason), but I've learnt a few things and now I'm ready to try and do life properly.......
Except my aging body disagrees.  My mind is ready to do the new adventures with a wiser head on my shoulders, but  my body is saying,  my head is rather heavy, it is too tired, not flexible enough and is particulary achey when it starts to rain. 

WHAT IS GOING ON BODY!!?? I'M SERIOUSLY PROTESTING THIS AGING THING!!!
The old lady image in the mirror does not compute with my brain.  I get a shock everytime I see it.  This is not what my brain thinks I look like.
My brain is ready to jump up and do stuff on a whim, but my body has to get up a certain way so as not to tweak something.  It is hobbling for at least the first five steps because of it's dodgey knee.  I have started pilates to try and combat the seizing up.

I DON'T LIKE IT, I DON'T LIKE IT, I DON'T LIKE IT.
I have vented to family and friends. I am traumitised. 
I have had the lovely advice to embrace the aging, to enjoy it, to be thankful you are still alive, and when I'm hearing this advice, my face is smiling and nodding.
BUT, in my mind, I have flung myself on the floor and I am having a full blown tantrum.