Whirlwind, I think it's good that you have brought up this subject. I really wish I could take estrogen. I've tried, and it did improve my libido, but I got heart rhythm problems from it. So I'm just letting nature take it's course. Hubby (70 years old) has slowed down too, which makes things easier.
This part of your life surely isn't over, but maybe just less frequent; and you know,...I think that has its advantages too; now we have more time for other stuff. :-)
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As soon as you trust yourself, you will know how to live.
Goethe