My left chest paining along with shoulder and left...

What might be the cause of your symptoms ?
As you mentioned in your consult, you might have a reduced blood supply in the coronary artery. This reduction will lead to Coronary Artery Disaeses
 What is Coronary Artery Disease? CAD
, There are three subcategories under CAD which are
Angina pectories
Unstable angina
Myocardial infarction
How to get diagnosed ?
By history and physical examination. CBC, cardiac enzymes to exclude MI, ECG and exercise stress test. Furthermore, an echocardiogram might be ordered to assess the cardiac function as well as cardiac cathetarisation for coronary artery assessmnet
How to get treated?
First of all, you should follow healthy diet regimen, reduce fats in your diet, quit smoking and do some sports. Regarding the medication, if you have an angina, you will be prescribed to use Nitroglycerin, beta-blockers such as bisoprolol and CCB such as amlodipine along with aspirin as well as atrovostatin
What to do now?
You should visit a cardiologist for further assessment and management