(((ButterfliPrincess11)))
Yup, that's scary. Sorry to hear you had such a bad dream and that it has been bothering you today. That happens to me too, like I can't seem to get it out of my head. Rest assured, it will eventually get out of your mind.
I have been having bad dreams too lately. Time of year? Who knows.
Do you take any meds? I find they have increased the number of vivid dreams I have, bad or good.
As for the symbol - maybe it was just an image representation of anxiety that your body was feeling at the time while you were asleep. Your mind placed an image with the emotion so to speak.
Hope you have better dreams from now on.