Gas trouble
flank
The spleen is the hemopoeitic organ lateral to the stomach o the left side of the peritoneal cavity.
The heart, you also have skin there, yes the skin is an organ.
See your doctor.
The spleen.
Spleen
heart
The abdominal region on the right side of the groin is called the right flank.
Spleen is along the left upper side of your stomach. Pancreas is also in that general area.
The heart is located in the left side of the body behind the breastbone area. The heart is part of the cardiovascular system.
both are at one side ; either right or left ; shoulder, chest or waist level ..