“Upper lip problem after rhinoplasty”

I had a closed rhinoplasty, where the prominent hump on my nose was removed, and the tip projected slightly. I also had the depressor muscles detatched to prevent the nose drooping when I smiled.

However I now have a very stiff and almost immovable upper lip, which doesn't move when I talk or smile, giving the appearance of it almost being paralysed. Is this normal, and will it eventually heal?