What type of symptom is typically NOT associated with insulinomas?

Insulinomas are rare tumors of the pancreas that secrete insulin, leading to episodes of hypoglycemia. The symptoms associated with insulinomas primarily revolve around the fluctuations of blood sugar levels. Fasting hypoglycemia is a hallmark symptom, as these tumors can produce excess insulin even in the absence of food intake. Similarly, post-prandial hypoglycemia can occur after eating due to inappropriate insulin secretion relative to glucose intake.

Nausea and vomiting are also notable symptoms, which may arise from hypoglycemic episodes and the body's response to low blood sugar. These symptoms often accompany the physiological stress caused by fluctuating glucose levels.

Weight loss, however, is not typically associated with insulinomas. While patients may experience hypoglycemic episodes that can lead to agitation and discomfort, the overall clinical picture does not usually include significant weight loss as a direct result of the tumor's activity. Instead, individuals may actually gain weight or maintain their weight due to frequent eating in an effort to prevent hypoglycemic episodes. Thus, weight loss stands out as an atypical symptom in this context, leading to its identification as the correct answer for this question.