Hi, thanks for using healthcare magic
Risk of heart disease
or stroke is determined by a number of factors but mainly the following: age of the person, family history of heart disease (with a positive history of a male in the family with heart disease before age 55 and a female before age 65), smoking history, history of diabetes , hypertension
With such a significant family history and history of smoking , you son may be at increased risk of problems. Smoking cessation
would significantly decrease these risks.
Symptoms of heart disease would be pain (which he is not experiencing), shortness of breath
, palpitations (feeling of abnormal beating of the heart, this may be what he is experiencing), swelling of the lower limbs.
It may not be significant but with his family and personal history , it would be best if he is assessed by his doctor.
I hope this helps