5 days post lip injections, my lips blanch when I smile. Is this normal?

I had quite a bit of swelling Monday through Wednesday after lip injections. 1ml was injected into my (small) lips on top of .5 injected at the beginning of April. My lips still feel a bit tight, and most of the swelling is gone but I still feel a bit tingly/swollen. They appear to be healing fine, but when I smile or even stretch my mouth open a bit, my lips feel tight and blanch up. Is this just from continued swelling?