Yes, what you are experiencing is not uncommon and many people with Lupus suffer from chest pains for serveral reason. Both my daughter and I had chest pains. Hers was due to pericarditis. Here is a brief explanation of pericarditis:
Pericarditis is an inflammation of the sac around the heart, it is the most common heart involvement in people with lupus. This condition occurs when antigen-antibody complexes-also known as immune complexes-are made during active lupus and cause inflammation within the pericardium.
Symptoms are sharp chest pain that can change with changes in the body's position and frequently may be relieved by leaning forward slightly; this chest pain may feel like a heart attack! Occasionally, shortness of breath can occur.
Pericarditis can occur in conditions other than lupus, therefore the cause must be determined before treatment begins. To help diagnose pericarditis, the following tests may be ordered:
echocardiogram (ultrasound of the heart) can tell if there is fluid around the heart.
My chest pains were from Pleuritis; below is a brief explanation of Pleuritis (inflammation of the lungs):
Pleuritis (pleurisy) is the most common pulmonary (lung) manifestation in Lupus. The pleura is a membrane that covers the outside of the lung and the inside of the chest cavity. It produces a small amount of fluid to lubricate the space between the lung and the chest wall. As lupus activity generates immune complexes, they initiate an inflammatory response at this membrane, a condition called pleuritis.
Symptoms of pleuritis are severe, often sharp, stabbing pain that may be pinpointed to a specific area or areas of the chest. Sometimes the pain is made worse by taking a deep breath, coughing, sneezing, or laughing.
Nearly all lupus patients have chest complaints at one time or another. Most of the complaints are not related to the heart, even though they may be present in the area around it. For instance, the costochondral margins (where the breast bone, or sternum, attaches to the ribs) may become irritated and produce chest pains. Many patients think they are having heart problems, but it can be easily differentiated from a cardiac problem because the area is tender on being touched. Also, the esophagus is directly behind the heart and pressure sensations under the breast bone can result from esophageal spasm. Occasionally, patients with shortness of breath or asthma believe their pain is cardiac.
Patients with systemic lupus erythematosus frequently have inflamed heart tissue, and as a result have a rapid pulse. This racing of the heart or tachycardia, is common in the disorder and is managed with anti-inflammatory therapies. Tachycardia may have others causes also, such as an infection. Chest pains from the heart are generally a consequence of the two conditions I mentioned above; pericarditis or myocarditis.
Palpitations, or irregular heart beats, may result from mitral valve prolapse, Libman-Sacks endocarditis, or artherosclerotic disease.
Lupus patients are more susceptible than others to hardening of the arteries in the heart area because of their increased prevalence of high blood pressure and elevated cholesterol levels due to steroid therapy.
Lupus can affect the heart in a variety of ways, ranging from infection to inflammation, and these can produce numerous symptoms and signs. There are inexpensive and noninvasive procedures, such as an EKG or 2-D echo, that can be used to identified and appropriately manage any heart manifestation as a result of lupus.
I hope that this has been helpful!
Peace and Blessings