Welcome MamaGirl!

I agree with Judy. I would talk to your PCP about it and get a referral or recommendation for a cardiologist and/or pulmonary dr. I don't know much about it but definition wise, cardiomegaly is an enlarged heart and pulmonary vasculature has to do with the vascular system within the lungs. And, as NurseNancy stated it is better to follow up for peace of mind than to worry about it and/or missing something important as well as very treatable.

I hope you start feeling better and definitely let us know how you are doing.