Numb arms are usually a sign of a blockage in the arteries. That coupled with high BP is very serious. I know you know all of that and I know you've said that your H knows all of that but have you actually pointed out to him that this could be fatal? Perhaps it's shock treatment he needs right now just to get his to act on his own behalf.
Me 43 XH 45 M 2.7.88 Divorce 7.10.09 Kids D20,S17 & D15