My dad is experiencing difficulty in breathing. accdg to him its like coming from his stomach. he also felt sluggish.

Well: If you are 60 - that means he is fairly old. Heart attack sx can include: chest pain or tightness, shortness of breath, increased sweating pain or numbness radiating down the arm (more often left than right) and nausea. There could be pain in the upper back, head, jaw or teeth. One fourth of people have heart attacks without chest pain. If this is new onset. Please take him to an emergency room.