[40F] Experiencing left shoulder pain with associated symptoms

What might be happening

Based on the information you've provided, here are a few possibilities:

• Musculoskeletal pain: This is a common cause of shoulder pain and could be due to overuse, strain, or injury to the muscles, ligaments, and tendons in your shoulder. The pain can radiate to other parts of the body, such as the back of your arm and shoulder blade. However, you mentioned that you haven't had any recent injuries to your shoulder, and the pain doesn't seem to be associated with specific movements or positions.

• Reflux esophagitis: This is inflammation of the esophagus that's usually caused by acid reflux, a condition you mentioned you have. Symptoms can include heartburn, a burning feeling in the chest, and pressure in the sternum.

• Costochondritis: This is inflammation of the cartilage that connects a rib to the breastbone (sternum). It causes chest pain that can radiate to the back or abdomen, and it can also cause a feeling of pressure in the sternum.

• Heart conditions: While less likely given your age and gender, certain heart conditions can cause symptoms similar to what you're experiencing, such as pain in the left shoulder that radiates to the arm, pressure in the sternum, and a heartburn-like sensation.

Please note that this is not an exhaustive list of possibilities, and other conditions could also explain your symptoms.

What you can do

Given the severity and duration of your symptoms, it's important to seek medical attention. Here are a few steps you can take:

1. Schedule an appointment with your primary care doctor: They can perform a physical examination and possibly order tests to help determine the cause of your symptoms.

2. Over-the-counter pain relievers: Non-prescription medications like acetaminophen (Tylenol) or ibuprofen (Advil, Motrin) may help relieve your shoulder pain. However, you should check with your doctor before starting any new medication.

3. Rest and avoid activities that make your symptoms worse: This can help prevent further injury and allow your body to heal.

4. Maintain a healthy diet and lifestyle: This includes eating a balanced diet, getting regular exercise, avoiding smoking, and limiting alcohol.

What you should look out for

If you experience any of the following symptoms, seek immediate medical attention:

• Severe chest pain or pressure, especially if it's accompanied by other symptoms like shortness of breath, nausea, sweating, or fainting
• Sudden, severe pain in your shoulder, especially if it's accompanied by a fever
• Difficulty breathing or shortness of breath
• Any other symptoms that are severe or concerning to you

Remember, this advice is intended to be general in nature, and specific causes may not apply to your situation. Always consult with a healthcare provider for appropriate examination, diagnosis, and treatment.