What is this weird shadow on my nostrils in most lighting and how do I fix this? (photos)

Hi, I've always hated getting my photos taken because of this weird shadow in pictures. It makes my nose look bigger than it actually is. In real life and especially in the sun, my nose looks smaller. I don't know anyone who has the same issue as me. I dont think I have prominent nasolabial fold either as can be seen from the third pic