Hey I saw your post earlier but the story you mentioned didn't ring any bells. Then just today I was browsing stories and found this one, "Expression of Silence" by Maddy A. Dante, which seems to fit your description. Here's the link:
http://www.rainbowcommunitywritingproject....nofSilence.html
Don't know if you are still around and looking for it, or if this is the right one...this story seems to be complete, so perhaps it's a different one. But if it not the one you're looking for, hey, the subject matter is similar so maybe you'll be interested in it anyways...I've just skimmed the first chapter, and it seems to be well written and interesting, so I'm going to give it a shot myself...