Having Prickly Sensation On Lower Breasts And Skipped Heartbeat. Cause?
Likely suffering from a coronary artery diseases
Detailed Answer:
Hello XXXXXXX
It is possible that your problem might be coming from the heart or else you might be suffering from anxiety disorder.
Coronary artery diseases/angina pectoris could be responsible for the pricking sensation under your breast which can also manifest as palpitations (feeling of heart skipping as you said). You will need some bed rest and book an appointment later on to see a cardiologist who can take a closer look at your heart condition (whether good or unhealthy), then decide on which treatment you can receive.
If heart diseases is excluded, then it might be possible that you are suffering from anxiety disorder, which can be treated with anxiolytics and psychotherapy.
Other possible causes of your symptoms might originate from your lungs but your description might be able to just rule that out.
Do book an appointment with a doctor for check up.
Hope this helps
Dr. Nsah
Referred pain from GERD could be possible
Detailed Answer:
Thanks for updating,
Referred pain from GERD could be another possible cause given that the pain exist below both breast and arm. You will need reevaluation since it is also possible that pancreatitis could be another possible cause. Your doctor/s will need to rule out first physical/organic causes before actually considering the possibility of anxiety being the cause of those pains. I suggest you see a doctor again as you might have been evaluated before in the past for heart condition, but could have developed in due time.
Hope this helps and wish you the best
Dr. Nsah