I guess it depends on what kind of discomfort you're having (tho your cardiologist should be able to help determine what might be going on?) Is it a pressure discomfort, or a bone healing discomfort, or an irregular heartbeat discomfort....
After my bypass surgeries, I always had sternum discomfort for a long time--just turn the wrong way, and I new that bone had been cut open and was healing. In fact, now 6 years after the last surgery, about 2 or 3 times a year I turn wrong, or sleep wrong, etc. and can feel a twinge in that breastbone.
But if it's an angina kind of discomfort, that's different. My angina started coming back about 12 years after my first bypass, and it eventually lead to the second surgery. But angina is something the cardiologist should help you deal with. But a big question for me always is, if I'm having discomfort, and take a nitro tab (one that has a good expiration date yet!), what happens....if the discomfort goes away, it's probably angina, if it doesn't it's probably something else--and of course the something else can be anything from heartburn to valve problems, etc. But again, what's the cardiologist say.
And if the discomfort is more of an irregular heart beat, something like afib--again, the cardiologist with a good EKG (may some Holter monitoring) should be able to figure it out. My afib is pretty quiet these days (thankfully!), but when it was acting up I was uncomfortable when my heart was racing and could feel that in the left side of my chest.
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Larry Haffner
Larryhaffner@gmail.com------------------------------