what is causing pain in left armpit
Other Common Causes of Armpit Pain. You may also experience pain under left armpit due to some other conditions as well. For instance: You may experience heartburn due to indigestion. The pain under your armpit is due to stomach acids traveling up towards your heart and may extend to the left armpit as well.
Other Common Causes of Armpit Pain. You may also experience pain under left armpit due to some other conditions as well. You may experience heartburn due to indigestion. The pain under your armpit is due to stomach acids traveling up towards your heart and may extend to the left armpit as well.