<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, Ive been experiencing severe nausea and vomiting during my pregnancy. Its causing me to lose weight and feel weak. What could be causing this?  <response>: It sounds like you may be experiencing hyperemesis gravidarum. To determine the severity of your condition and ensure your health, well need to perform several medical tests. These will include a blood test, urinalysis, CBC, IV fluid replacement, glucose level measurement, kidney function test, and electrolytes panel. 