Its not a good picture. Lighting makes your skin look all sickly and pale and face looks all puffy here but I guess it could be lens distortion. Also you'd look better if you fully shaved. I think in your best pics you're like a 6 rho
Yes, it's lens distortion. These phone cams create a fish-eye effect at close ranges. They can also flatten your face at longer ones. Although whipping out a DSLR with an expensive lens isn't practical, so for a selfie its fine. My nose looks awful under a phone cam at arm's length, and much better in the mirror or with a good camera lens.