How are you? There are a number of causes for chest pain
and pain in
the left arm
like myocardial infarction, myocarditis, hypertension, esophagitis, pneumonia, pneumothorax, herpes zoster, thoracic outlet syndrome etc.
Have you got work up done for all the conditions mentioned? Also, if you are having medical conditions like diabetes, hypertension, hyperlipidemia then you have risk of developing TIA’s and stroke. The symptoms that you mentioned could be a manifestation of TIA.