I have been having a sharp pain in the lower right side of my abdomin. i was told that i might have abdominal wall pain. what exactlly is this?

Muscular Pain: The abdominal wall consists of multiple muscle layers. Like anywhere on the body, a pulled muscle can cause significant, lingering pain. Since we use our core muscles for most activities, it can be difficult to rest these muscles. Pain from the abdominal wall can be difficult to distinguish from "internal" abdominal organ pain; muscular pain tends to be unrelated to food & worsened by activity.