Start with the part that is verifiable
Separate the event you can describe from the motive or reaction you are guessing. For a message about how to support someone after a heart attack, use this factual base: acknowledge the diagnosis or treatment only as they described it and remember the practical burden around it.
Make one answerable request
Give the recipient one concrete question or next step instead of several emotional jobs at once. Offer one specific task, flexible company, or ordinary contact that they can accept or ignore. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Leave the recipient in control
Do not prescribe cures, compare outcomes, ask for optimism, or share their health information. Leave medical decisions to clinicians and contact urgent or emergency services when there is immediate danger. A clear message remains useful even when the answer is no or no answer arrives.