Orb around my face during picture?
So last night i was taking pictures, like usual, because it's my hobbie and i had devil horns on and everything, because i love dressing up, and i was using my iphone 4s camera that has a flash, and i took a picture of myself (press on the link to see it) and i was sending it t someone on snapchat and it had no edit or anything so i took it and there was this big round circle around my face and i got freaked out and ran to show my sister, and she thought it was an orb and i thought it was too, but i don't know i'm not for sure yet, and i was wondering what could it be, and yes this photo is edited, i didn't put the circle there and it's not because of the effect, unfortunately i don't have the original photo and please believe me i'm not lying, and i don't think it could be from the flash because every single time i took a picture with my iphone 4s back camera and flash on nothing ever came out like this, just wondering what it could be, thank you