Hi there ~
I understand your concerns. Fainting
episodes, difficulty breathing
, body numbness after exercising, are all symptoms of a grave neurological or a cardiovascular condition. I strongly advise you to consult a cardiologist
and have a thorough check up done as well as any testing to help diagnose the condition and have it treated. I believe if everything is normal cardiologically, you may need to consult a pulmonologist
or a neurologist
to determine the cause of your condition. MRI of the brain and MRAs of the cardinal arteries may be necessary as well. Please consult the appropriate specialist for treatment. I wish you the very best in your recovery.
I hope this helps. Take care and have a lovely day!