I was wondering if anyone has had any experience with this disorder? My almost 3-month-old niece has just been diagnosed with this and we're not sure how bad it is yet. She will be scheduled for an appointment with a neurological specialist and hopefully they can give us some more information then. The doctors have told my sister that it is common for this disorder to attack people's vocal chords so they are unable to speak and it can also affect their ability to walk and perform everyday functions (like being able to feed yourself, writing, etc.). They've also said it could be very mild and easily correctable with some physical therapy. So basically the not knowing is the hardest thing at this point.
The good news is that she has been tested for every under-lying cause of this disorder (including different cancers, cerebral palsy, Parkinsons, etc.) and she is clear on all those fronts. It appears she only has this condition because of a genetic mutation.
Luckily, she is a very happy and healthy baby. Unfortunately, this disorder does cause her to have a lot of pain...but my sister is able to help her cope with it pretty well by moving her into certain positions.