No matter what your xh has done, he is still the father of your children. No one wants to see their former spouses have serious/fatal conditions w/the possibility of dying before their time. Yes, it does sadden you to think it could be serious.
His problem could be that he requires a pacemaker or needs to be put on heart/blood pressure medication. Maybe they will suggest he needs to change his diet to lose weight. He may need to cease w/the drink (if he's been doing that). There could be any number of reasons for his heart to be acting up. Running tests and monitoring his heart are the best steps to get to the bottom of his problem. Hopefully, the answers will come very soon and maybe medication or even surgery will help him live a longer life.
For now...all you can do is wait to see what the outcome will be from the tests.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
