I don't know what kind of symptom this is.

It feels like there's something in my eyelid, but I can't see anything.

Sometimes, especially when my eyes are tired, I feel a sensation of something inside my eyes.

Even when I lift my eyelids to see what's inside, there's nothing there.

There is nothing to come out because there is nothing to remove with tears or eye drops.

I thought it might be a stye, but I don't see anything growing, so maybe it's not a stye. Could it just be because I'm tired?