Genetic testing – information disclosure

Hi.  I would like to ask a question concerning a doing genetic testing and its possible implications of disclosure for shidduchim for my children.

I am a 35 year male whom, my physician would like to do a genetic test for Facioscapulohumeral muscular dystroph (FSH) dystrophy.  I have been having very mild symptoms over the last few years that is leading a neurologist whom I went to, towards this diagnosis. 
My question is:  If the test were to come back positive, would I have to disclose this in the future when seeking out shidduchim for my children (now all infants, toddlers) ?
I am not an expert in this disorder, but just a little background information. 
It is a muscular dystrophy, varying in severity from very mild to moderate.  It is inherited in a autosomal dominant form 2/3 of the time, and results from a spontaneous mutation the other third of the time.  My symptoms are mild (and per the neurologist, I probably only came to him because of my medical knowledge – i am a physician) and am fully functional.  I do not have any family history of it, making it more likely that I have the spontaneous form and would therefor not be passed down.
The reason I want to have the test done is for my peace of mind to know what is the cause of my symptoms and to establish a diagnosis, if chas v'shalom i were to need employment disability because of this in the future.
Thank you very much