Do I have saggy jowls or is it fat & what's the treatment? (photos)

I have done Botox in masseter before but found that wasn't my issue. My facial bone structure is exactly what I want, even my jaw, I have a quite petite bone structure but lately my face has a more square and bigger look. I asked my injector and she said it was just skin that we could pull up with threads. But I feel like it must be more than that. Is this treatable with threading, buccal fat removal or any other method? Gua sha? I gained weight, but lost it again & face still looks bigger :( I'm just confused how within a year my face has dropped and changed sooooo much! I noticed too when I smile my cheeks get pretty chubby and my overall face/head just looks bigger. Why is this and is there a treatment?