I used to be 5'2", but am now just 5'0". Not due to osteoporosis, though. I'm 79, but when I had a bone scan recently, I was told that I have the bones of a 50 year-old. I hope that she doesn't ask to have them back! Being naturally short and stocky obviously does have at least one benefit!
I have always had trouble reaching up for things, due to being so short. I spotted a very handy little folding plastic stool in the local market which just flips open and is ideal for standing on to reach things.
When I had a new kitchen fitted, a few years ago, I designed it so that everything is a few inches lower. After years of working uncomfortably it's a joy to have worktops, sink, hob and cupboards at a more practical height. If I ever sell up, though, I will have to find another 'shorty' to buy the house!
Good luck to all you incredible shrinking Grans. Like Alice, when your chin hits your feet it's time to start worrying!