I’m exactly the same. I knew 40m in, right when it started to take effect. It was night and day. Like I’d just walked from a raging thunderstorm into a quiet sunny meadow, but I’d thought that I was in a quiet meadow my whole life. It was profound.

There was a decade between me first seriously suspecting it, and that.

Information about it is much easier to come by now, and more people talk openly about it. Without that, I probably would have struggled for much longer.