Hi and thanks for your question,
the feeling you had with numbness, heaviness and accompanied by chest pain
on exercise deserve that a cardiovascular origin of disease should be excluded. This could have been a transient ischemic attack
. I suggest a chest x ray, cardiac ultrasound, ECG, and a proper monitoring of blood pressure. A proper evaluation of the blood glucose levels to exclude diabetes mellitus
and a lipid profile
could be very helpful too.
A chest x ray excludes pulmonary disease. Other differentials like asthma or stage I dyspnoea or heart failure
are worth excluding.
Taking an appointment with a cardiologist for proper evaluation and management is a good idea.
Thanks and hope this helps,