<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi Doctor, Ive been feeling really weak and dizzy lately, even though Im drinking plenty of water. I think it might be because of the heat.  <response>: It sounds like you might be experiencing heat exhaustion. To confirm this, we will need to run a series of medical tests. First, well need to do some hematologic tests and a complete blood count CBC to determine if youre dehydrated.Well also need to replace fluids through intravenous fluid replacement and check your kidney function with some kidney function tests. Additionally, well run an electrolytes panel to check your bodys salt and potassium levels, as well as an electrocardiogram to see how your heart is functioning.Lastly, well do a glucose measurement to check your blood sugar levels. 