thanks for reply, was thinking same thing but unsure. one of harder aspects of cad is not knowing whats going on.
thanks for replies, am feeling better today but still confused why extreme cold would have such a profound effect eg. shortness of breath, lightheadedness when walking has been fine even two days ago. didn't really have chest pain, maybe slight pressure. will make an appt w/ cardio. don't think its restenosis but effect is concerning given I have no other major blockages.
I'm not a health professional either. Cold has a constricting effect on blood vessels. If you have already stenoses in you coronary arteries, the constricting effect adds up to this and may result in ischemia of the heartmuscle, where you might experience chest discomfort. Nitro would normally help in such a situation as it widens the arteries and thus compensates the constricting effect of the cold. I would recommend you see a cardiologist.
I'm not a health professional, but lots of experience with heart disease with multiple stents, by pass and more. Yes, temperature changes can be a trigger for heart discomfort, both heat and cold extremes can give a lot of discomfort. I'd certainly get checked out, and soon, especially with your hx of LAD issues. It is possible that you have a new occlusion or your existing stent has accumulated new junk. My heart bypasses failed, and hot weather when exercising was the first clue. If you remain uncomfortable, I'd get yourself check asap. Do you carry Nitro? Take it, and mix in an aspirin. Keep us informed.
People can and do develop this kind of cold intolerance (in some ways like an allergy) at any time of their lives, and it is treated much the same way as asthma is treated.
Since this is a new symptom for you, and you do have a cardiac history, it would be a good idea to see a doc to find out what's going on.