My father is a stroke survivor with a weak heart. He has trouble sitting up to eat and tires in 10 minutes with labored breathing. Advice?

Adding to what each of the 3 previous posters suggested, I would ask if he's on oxygen, when his last pulmonary exam was, and if he was on oxygen, whether or not the meter flow was increased by his pulmonologist.   Also, do you know what his cardiac ejection fraction is?

Please contact his doctor and tell him/her your father’s symptoms.

Wishing you and your dad all the best.

Do you have a question Marish? If his difficulties are new or increasing I'd be concerned about heart failure or fluid around the heart, this needs medical intervention asap.