A 23-year-old pregnant female complains of severe nausea and weight loss. What should you suspect?

The situation described indicates that the pregnant female is experiencing severe nausea and significant weight loss, which are hallmark signs of hyperemesis gravidarum. This condition is a more severe form of nausea and vomiting during pregnancy than typical morning sickness, which is generally less intense and does not lead to significant weight loss or dehydration.

Hyperemesis gravidarum can lead to complications such as dehydration, electrolyte imbalances, and may require medical intervention, possibly including hospitalization to manage these symptoms. Recognizing this condition is crucial for timely care and treatment, ensuring the health and safety of both the pregnant individual and the fetus.

The other options do not align with the symptoms presented. Morning sickness is commonly characterized by mild nausea without significant weight loss. Gestational diabetes involves issues with blood sugar regulation but does not primarily present with severe nausea or weight loss. Antepartum hyperemesis, while sounding similar to hyperemesis gravidarum, is not a recognized medical term commonly used to describe the condition. Thus, hyperemesis gravidarum is the correct and most relevant diagnosis in this context.