What might cause chest pain and left arm numbness?

Rule out heart first. Number one cause in seriousness is heart disease / attack. If you haven't checked this out, do so right away. Other causes include pinched nerve in neck, shoulder injury, overuse syndrome of left arm, thoracic outlet syndrome, blockage of axillary artery.
Hmmm... Chest pain with exertion radiating to the left arm with numbness or pain, improving with rest is suspicious for heart disease. That needs to be investigated. Alternatively, a pinched nerve in your neck follows that dermatome and can mimic heart disease. Alternatively, arthritis in the shoulder, biceps tendon, or costochondritis all can do this. The key is the last 4 items are non-exertional.

Related Questions

How do you treat chest pain and left arm numbness?

Consult a doctor. Chest pain can be due to many causes and can be serious, especialy when you have left arm numbness, as it may be related to your heart so waste no time see your doctor asap or go to er. Read more...

Constant chest pain and left arm numbness. What do I do?

Go immediately to an. Emergency room to make sure that this is not a cardiac or heart issue like angina which can present just with these symptoms. Read more...

Chest pain arm numbness heaviness Ekg normal sinus rhythm RSQ QR in V1 sug. RV cond. Delay. ST-Mild physiologic apical window thickening. GFR-64, BN-357?

Unclear. The short answer is to see a cardiologist. The information provided is confusing. A routine consultation would clarify everything and enable a solid recommendation concerning any needed treatment. Read more...

I have a stabbing chest pain behind heart and numbness of left arm. What could be the cause of this?

Many causes. Chest pain of any type should never be ignored. While there are many benign, minor causes of chest pain , it is a symptom that can indicate an underlying serious potentially fatal problem of coronary artery disease which can lead to a heart attack. Chest pain should always be fully evaluated by competent and experienced medical personnel and never assumed to be insiginificant until checked out. Read more...
Aorta? Could be your aorta ... Would recommend consulting with your doctor for heart exam as well as some evaluation of your aorta (echocardiogram or ct scan with contrast) ... Read more...
Chest pain to arm. If pain is not reproduced by pressure on breast-ribs then the pain is from inside chest = all organs inside can cause same symptoms. But must instantly rule out heart problems as sudden death can occur. The other vital organs need be urgently inspected to find the diagnosis. No sensory nerve inside the body resulting in pain of imprecise location. Intensive testings still do not reveal cause of pa. Read more...