Coreg is a very potent beta blocker. You didn't post the dosage, but when my dose was increased to 50mg daily I reacted as you seem to be feeling, and it was dropped to 25 mg daily. It still worked, my ldl's dropped, my hdl's increased, and I felt better. The payoff was that my ejection fraction improved greatly, which is the goal of the drug cocktail. Lipitor shouldn't create fatigue, in my opinion and from experience.
the good news, from your post, is that you are able to develop collateral arteries that take the place of the blocked arteries, and it sounds like the drugs are working. If you are miserable, I would strongly urge you you ask your doctor if you could reduce the dosages and see how the blood tests go. Also, exercise is so important as we recover, and if we aren't feeling well, we don't want to exercise.
It's also possible that your heart attack changed the electrical pathways for your heart beats, creating a need for a pacemaker. In my case that happened, and a pacemaker really helped me with the tachy/brady symptoms that led to fainting. I'd discuss this with your doctor as well.
Keep us informed.
Lori I can understand some of what you are going through. My MI was 2 months ago, just after loosing my wife. I am 58. Right coronary artery 90% blocked, so they stented. 3 other arteries 20 to 30% blocked. Taking some of the same drugs as you, but only 5 mg of lipitor per day. some of your fatigue could be due to your high dose of lipitor. long term high dose lipitor has been shown to cause problems, including cognitive disfunction.
the day after my MI I went on a strict plant based low fat diet akin to that advocated by Dr Esselstyn of the Clevenad Clinic. He wrote Prevent and Reverse Heart Disease (2007) My lipids as of last week are: total Cholesteral of 111, Triglycerides of 107 and LDL of 54. that's half of my prior numbers. So I hope to come off the lipitor soon, once I discuss with my cardiologist.
I am still dealing with a level of depression due to loosing my wife who I had cared for for the past year, and now dealing with this new health issue. For me, exercise (walking) and diet changes seem to help, so this might be something for you to try for your fatigue and depression, and maybe it will also help get you off of some of the drugs, or at least lower the dosage.
I wish you well
peter