If you are on blood pressure meds they will want to increase your dosage or start you on BP meds if you are not. This is the best thing for your heart, especially if you want to live a lot longer. If you smoke try to cut down or quit. You can fix your breathing problem temporarily with an asthma inhaler like Primatine but this is not a good strategy in the long run either, as it will also raise your blood pressure. How is your cholesterol? If it is high you may need to modify your diet too, because you don't want your veins all clogged-up either.
Hopefully they can get you back in to see the surgeon soon.
"We stay here, we die here. We've got to keep moving". Trucker Mark