Pain in upper left side under the breast?

Many Things. Pain under your Left breast can signify several issues. If you are premenstrual, this is normal as long as it resolves after menses. It can also point to heart problems. Sometimes, it may be a starting symptom of Shingles. It can also be sore muscles if you have done some heavy lifting or unusual exercise. See a doctor.

Related Questions

Pain in the upper left side under the breast bone?

Some possibilities.. Is it "chest pain" or just in the bone? A person with chest pain must see the doctor to find out why. She should consider going to the E.R. If she cannot reach her doctor. If it turns out to be a heart problem, a collapsed lung, a pneumonia, a blood clot in the lung, bad heartburn, costochondritis (inflammation of the rib joints), etc..., she will still be in the right place at the emergency room. Read more...
More info. Lots of tissue and organs in that area muscle, ribs, lung, nodes, and heart may cause discomfort. Read more...

I have a sharp pain upper left side, under my breast. It really hurt after I eat.

Could be stomach. The GI tract is tough to diagnose. Symptoms in the abdomen can be from the GI tract or other organs, such as the spleen, liver, musculoskeletal system, etc. If it's obviously worse after eating, it could be acid reflux, stomach ulcer, pancreas-related. I would suggest getting some OTC omeprazole and taking it 30 min before a meal once daily for 14 days and see if the pain improves. Read more...