Parasites Forum 01 IMG 6569

I don't know what this is? It only comes out sporadically and only out of my left side of nose. What is this?
It's sometimes black. Look like a tiny thread or fiber but it's not sturdy at all. If I press it it will disintegrate. They're different lengths, the longest I've ever "blown out" is about an inch long. This is not dirt or makeup.
Help please!!! Doctors think I'm crazy!