My upper lip has been, for two weeks now, requiring a thoughtful effort to close it over my teeth. It is strange to describe, but I wore full-metal braces as an adult, and I had to "work" to close my lips over the braces. Now, my husband describes the lip thing as a similar motion to the era of the braces. This feeling is only on the right side. It is an unusual, but concerning thing. I am a teacher, so I speak before students constantly. I find I need to be more deliberate in my pronunciation. Thank you.