Sister, my du'a is that Allah protect your son and comfort you, Insha Allah. I am persuaded that neither death nor life, nor angels nor principalities nor powers, nor things present nor things to come, nor height nor depth, nor any other created thing, shall be able to separate us from the love of Allah. All things work together for Good for those who love Allah. If Allah be for us, whom shall we fear. My sons have turn my wife's hair gray. i honestly believe that the only love greater than that of a Believing Mother is the love from Allah.
I will keep you both in my prayers. Your brother in Islam, Frank