I went to get lip filler, however injector insisted I fill the corners of my mouth as well, to balance. Is this normal? (photos)

My very first experience with Juvederm filler. I went to have strictly my lips done. However, my injector insisted that I also needed to have filler around my labial commisures as well. For symmetry or something along those lines. Anyway, the filler ended up giving me jowles, and felt like small hard balls under my skin. I ended up having the filler dissolved about 48 hours ago. The filler has somewhat dissolved, leaving stretch mark lines and dark discoloration around my mouth. Is this normal?

