Thank you for coming back online.
The symptoms you have described of having shortness of breath,tightness in chest with weakness can be due to angina.It occurs when heart is not getting enough blood and oxygen.It is most often caused by blockages in the arteries that supply blood to your heart.Angina may feel like pressure or squeezing in your chest.Stable angina isn't a heart attack, but it makes a heart attack more likely in the future.
Other possible causes can be:stress,anxiety,depression,psychological causes.
All types of chest tightness/pressure/pain should be checked by the doctor to rule out any heart disease. You need following tests:
This should be evaluated at ER.So my best advise for you is to please consult your doctor at ER to have these tests done so as to know the exact underlying cause & then treatment will be done accordingly.
Hope this helped.
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