Why does it feel like water is flowing down the back of my thigh?

It's been a while~ almost 10 years, I think.

Symptoms do not appear every day, but intermittently.

I feel it very rarely.

 

I feel like water is flowing down the back of my thighs.

I felt it for the first time last summer...

I thought I was sweating, so I wiped it off, but there was no water.

 

And then I felt something and my hair got stuck

When I thought about it and tried to pull it off, there was no hair at all. Why on earth is this happening?

 

Is there a problem~

Or I wonder if everyone else is like that too.

 

The area is the area that can be touched by hand in the photo below.

It works~