I had 10 units , total 20 units of botox 6 months ago for bruxism, in masseters. My face had longer jaw before the treatment. Now, 6 months later, muscles started building up but my face seems to appear shorter, jaw is not like before and it scares me. I know it takes a bit longer for masseters to build up but facial shortening? I am just blaming myself for doing this because now I look different. How long do I have to wait?