Lip filler migration - what do you think? (Photo)

Hello, I've had lip injections: 1 ml in 2021, another 1 ml in September 2022, and 0.5 ml in February 2023 (all using Stylage). Additionally, I've had nasolabial injections: 1 ml in September 2022 (Rejeunesse) and 0.5 ml in February 2023 (Stylage). Recently, I've noticed two lines at the corners of my mouth. I contacted my doctor, who said these lines can't be caused by filler migration since the injections were done a while ago. What do you think?"