<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi doctor, Ive been feeling very tired and sluggish lately, and Ive gained some weight even though I havent changed my diet. Im not sure whats wrong with me.  <response>: Based on your symptoms, its possible that you have hypothyroidism. Well need to run some tests to confirm this. I recommend a hematologic test, a lipid panel, and a glucose measurement to start. In addition, well perform a complete physical exam including a skin check and examination of your breasts. Finally, we may need to do some other diagnostic procedures such as an interview, evaluation, or consultation with a specialist. Well get started on these tests right away so that we can figure out the best course of treatment for you. 