Why i feel weak when im resting with pain in my...

How to treat left sided chest pain and fatigue

these symptoms may be due to coronary artery disease which can be treated according to the severity of coronary artery stenosis so in severe cases it is treated bu stent implantation using catheter and if the stenosis is mild then it can be treated by medicatin like aspirin and atorvastatin and bisoprolol and nitroglycerine other possible cause of your symptom is the presence of chest infection which can be treated by antibiotic like augmintin and you can use ibuprofen to relieve the pain

How to diagnose left sided chest pain and fatigue 

you should has ECG done and cardiac enzymes like troponine  to exclude the presence of myocardial infarction and you can has echocardiography done to exclude the presence of valvular problems and you should has chest x ray done to exclude chest infection

What are  the causes of  left sided chest pain and fatigue 

coronary artery disease
chest onfection
costochondritis

advice

you should be assessed by the physician and has the investigation done to diagnose the problems