Which of the following is NOT a warning sign of internal injuries?

In the context of recognizing warning signs of internal injuries, increased energy levels is not typically associated with such injuries. In fact, internal injuries usually manifest through symptoms that indicate distress or instability within the body, whereas elevated energy levels suggest a healthy state, which would not coincide with serious medical conditions like internal injuries.

Other symptoms like pain or tenderness in the abdomen, bruises, abrasions, and feelings of faintness are all indicative of potential internal issues. Pain or tenderness in the abdomen can signal damage to organs or internal bleeding, while bruises and abrasions can suggest trauma to the body. Feelings of faintness may indicate blood loss or changes in blood pressure, further pointing to the possibility of internal injuries. Thus, increased energy levels stands out as the only option that does not align with the symptoms typically observed in cases of internal injuries.