<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been feeling very thirsty lately and my mouth feels dry all the time. I also feel very weak and dizzy. Can you tell me whats wrong with me?  <response>: You might be suffering from Hypernatremia, which is caused by an excess amount of sodium in your body. To confirm, we need to run some medical tests such as Hematologic tests Blood test, Complete blood count Cbc, Glucose measurement Glucose level, Kidney function tests Kidney function test. We also need to check if you need Intravenous fluid replacement to restore the balance of fluids and electrolytes in your body. In severe cases, we might suggest a Radiographic imaging procedure like a Plain x-ray X ray to check for any underlying medical conditions. 