With all the compassion on what you and your son are going thru, and certainly my prayers are with you and yours.
Have you ask him if he wants you to stay with him at the hospital? Because it is delicate balence with being there. Is difficult to have someone there when you need to control your pain.
Plus, I am torn between you needing to be there to advocate and care for him or him needing to find a way to do this on his own.
I know he is really sick, and it is a judgement call on what area is best for him and you.
I am glad he has you to back him up.