I'm sorry to hear that you're experiencing pain in your left chest and arm. These symptoms can be serious and may indicate a heart-related issue such as a heart attack, which requires immediate medical attention.

What you should do:

• Call emergency services immediately (Apollo Emergency - 1066) or go to the nearest emergency room without delay.
• Do not try to self-medicate or wait to see if the pain goes away.
• If you have been prescribed medications like Cilacar (a calcium channel blocker used for blood pressure and chest pain), continue taking them as directed but do not rely on them to relieve acute chest pain.

Important points:

• Chest pain accompanied by arm pain can be a sign of a heart attack.
• Immediate evaluation by a cardiologist or emergency doctor is crucial.
• Early treatment can significantly improve outcomes.

Please seek emergency medical care right away to ensure your safety.To narrow down potential causes, we will need some more information.Please tell me your age and gender.