Out Of Nowhere I Had A Feeling Like I Had

Out of nowhere I had a feeling like I had something in my eye. I was feeling it on the inside of the upper lid. It felt almost like an eyelash. We got a flashlight and looked into my eye and saw a white filmy substance that wouldn't move. After eye flushing for 20 minutes, I finally decided to use a wet q-tip and work it out. It eventually worked it out where I could get my fingers on it and pull. When I did a long string of what looked like skin came off of the entire eyelid on top and bottom. It out of my eye now and feels mich better, but what caused this and is it something I should be concerned about?