I'm sorry to hear you're experiencing pain in your left chest and arm. These symptoms can sometimes be related to serious heart conditions, including a heart attack, which requires immediate medical attention.

Here’s what you should do:

• Seek emergency care immediately by calling the emergency number provided (Apollo Emergency - 1066) or going to the nearest emergency room. Chest and arm pain can be signs of a heart attack, and prompt evaluation is critical.
• Do not delay or try to self-treat these symptoms at home.
• While waiting for help, try to stay calm and rest in a comfortable position.

For relief and prevention in general:

• Medications like Cortel 40 mg (used for high blood pressure and reducing heart attack risk) work by relaxing blood vessels, but they are not for immediate relief of chest pain.
• Avoid alcohol and certain painkillers without doctor advice, as they can affect heart medications.
• Regular follow-up with a cardiologist (heart specialist) is important if you have risk factors or ongoing symptoms.

Please prioritize urgent evaluation by a cardiologist to rule out or manage any heart-related issues safely.To narrow down potential causes, we will need some more information.I understand you're concerned about chest and arm pain. To help me understand your situation better, could you please tell me your age and gender?