I agree w/TS, this is not an ordinary situation and your h is under a lot of stress right now w/both parents in poor health. I would send him a text this morning to check on him and his parents and let him know that if he needs to talk, you are there for him.

I do think you gave him some good advice about contacting the doctors. The meds may need to be changed.

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.