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You have said too many things, though not descriptive enough to conclude...
You have not stated your age, gender, personal habits, family history or co-morbidities
This may mean Anxiety
/ Coronary Artery
Disease / Hear failure ....and so on.
You should see a doctor / A thorough history and physical examination is the first step - / EKG / HOLTER (24 to 48 hour ambulatory monitoring) / ECHOcardiogram
/ TMT (Treadmill exercise ECG) / LABORATORY work-up – may all be necessary for further assessment and assistance.
The treating doctor may suggest them depending on need, based on his assessment of the situation.
Wishing speedy recovery