Dream of

I had a dream 2 nights ago. I guess more of a nightmare. I don't remember where the dream took place but I was pulling a mucusy umbilical cord type thing that was skinnier than a normal umbilical cord from out of my left nostril....it was attached to my brain. I just kept pulling and pulling but it wouldn't end...I had to end up cutting it inside my nose so it wouldn't dangle out of my nostril. It was so terrifying. I was panicking.