Lack of energy/losing energy quickly; post-heart attack, 47

My boyfriend has had 2 "official" heart attacks as he calls them (one was two years ago, then another last summer). He claims to have had 2 additional "minor" attacks, for which he did not seek medical attention (so 4 total). He's 47, has stents in his heart (due to a 70% blockage at the time of one of the attacks), smokes about 15 cigarettes a day, has trouble with stress management, and is pretty set on not going to a doctor regularly for many reasons. Because of his cynical views of modern medicine, we've set up an alternative medicine routine for him: garlic, cayenne, vitamin e, multivitamin, omega 3/fish oil, 81mg asprin, and a shot of honey/vinegar daily. He also takes CoQ-10 for energy. His last blood pressure recording (on june 7th) was 130/73. So, all that being said...
More & more recently he's been losing energy very quickly (after only being awake for a few hours), or he just doesn't have energy at all on some days. He has to take one or two naps almost every day and it concerns both of us. He also says that his "blood gets hot" and he starts sweating a lot, his heartrate speeds up and he feels like he can't take a full breath and needs to lay down. He has these symptoms both during his waking hours & at night while trying to sleep. So, what we're both wondering is: what is the reason for this? Is there anything we can do to ease these symptoms?? Whether it be another alternative medicine or possibly an exercise routine, anything..? He's working on cutting back on smoking and we eat a mostly heart-healthy diet.
If there's any info I've left out, don't hesitate to ask. Thanks in advance!