Troubled mind, very best wishes for your son's speedy recovery.
So sorry to you and exwhyzee regarding the apparent lack of concern by your JW relatives at a time when you really needed their love and support.
If it is any comfort, I am sure it is nothing personal, as mouthy said they think they are doing the right thing and are no doubt totally unaware of the hurt they are causing by their apparent lack of concern. It is just the result of years of indoctrination, convincing them that Jah requires them to put WT interests first and foremost before their own needs and those of their loved ones.
My own relatives are wonderful, loving people who would do anything for you under normal circumstances but during the aux pioneering month of April, CO visits, Assemblies etc, I might as well be living on another planet. I am used to it now, and just grateful that they have chosen not to shun me which has happened to so many other ex JWs.