Unless you have the misfortune to have refered pain from a bad liver. This includes feeling a horrendous sharp pain in your armpit and under your shoulder blade. I experienced this and thought I was having a heart attack only to find out I had a rather large liver tumor pressing into my diaphragm. Lucky for me it was benign but now I'm blessed with reliving that pain periodically when the weather changes. I really hope I don't have a heart attack down the road and ignore it thinking it's just normal for me.