Well I'm new to this forum, but not to the site atleast

decided to share with me of one of my most bizarre experiences so far, One day when I were 14(I'm 16 now) I noticed that my shadow had 2 horns? I first thought it were just my hair, so I went to the mirror to fix it, the odd part where that my hair were just like it were supposed to be, and my shadow still had 2 horns, it dident matter were I went in the house, I would still have 2 horns... i even tried to put a hat on but i still had horns in the shadow...
I dont have anyone to confirm this, my parents were working late that day and my cats were outside. But my friends and some people said they found my presence "frightning" during some time after that day, but now everything seem to be back in ordning, anyone got a reasonal idea of what that was?