You've tried to work it out yourself. Your iron. Your hormones. Your age. The kids. This is just a “season”... which has now been running about six years.
You might have even had the bloods done. They came back fine.
Every one of those explanations arrives with the same instruction attached. It's normal. Wait it out, or take something for it.
So you've waited. And nothing has shifted, because none of those things were ever the problem.
Here's the one thing nobody has ever put next to it.
A free hour opens up on a Sunday morning. Nobody needs anything from you. And you spend it scrolling, or wiping down a kitchen bench that was already clean. You had the whole hour, and you couldn't think of one thing you actually wanted to do with it.
You make fifty decisions before nine in the morning. Ask you what you want for dinner and there's nothing there.
Everyone reads that as a side effect of being tired. It's closer to an explanation than anything you've been handed all year, and it has been sitting in plain sight the whole time.
You're just not really living it. The answer to what you want is still in there. Nothing has asked anything of it for a long time, so it's gone quiet, and quiet reads like gone.