"vulnerability to infection"

Dull Pain in Your Left Flank? Check the Spleen Along with the Liver

Have you noticed an unexplained dull, pricking sensation in your left flank lately? Do you constantly feel sluggish and drained, struggling with chronic fatigue? It is easy to dismiss this as simple indigestion, but if these symptoms keep returning, they may be a distress signal from an essential organ: your spleen.