Thanks for your health concerns. Indeed, uncontrolled diabetes
is quite worrysome as it confers a higher risk for re-infarction
and other such complications. After eating, cardiac output has to increase for digestion and these symptoms could be anginal or cardiac in nature. Alternatively, they could have other etiologies such as esophageal spasm, delayed gastric emptying from diabetes and refulx. Top priorities are getting sugars under control and determine if he would need a stress test
by his primary heart doctor.
Wish you the best,
Dr Brenes-Salazar MD
Mayo Clinic MN