<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, Ive been feeling hot and cold lately and Ive noticed that Ive become quite underweight. On top of that, Ive also been experiencing some symptoms related to my kidneys. What could be the reason behind all these symptoms?  <response>: Based on your symptoms, it is possible that you may have tuberous sclerosis. This is a rare genetic disorder that can cause a variety of symptoms, including the ones you are describing. Further testing and examination would be needed to confirm the diagnosis. 