Got a Medical Question? Ask a Doctor Online!
Hello & welcome to Just Answer! If you have any questions after reading my answer, be sure to let me know.
Given your age, and the fact that there is an exertional component,
my first reaction would be to rule out a cardiac cause in this situation
An evaluation with a stress EKG, and possibly a stress ECHO, or/ & an angiography may be needed in this situation
Please remember to accept the answer by pressing the GREEN accept button, do get back for any clarifications