I don't think too many of us are really qualified to answer that question bro! If you have any sort of health problem, especially dealing with your heart or lungs, you should always check with your Doctor before taking anything. Read the labels of the supplements you want to take - do some research on them and bring them into your Doc. See what they think, and then go from there! The last thing you want to do is take something that will only make things harder for you dude!
Keep fit and good luck - you have a giant community of people here always willing to help and give advice.
Cheers.