<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing some symptoms lately. My skin has been itching a lot, and Ive noticed that my heart rate has been higher than usual. Also, I am worried because Ive had some problems during my pregnancy. Could you tell me what might be causing these symptoms?  <response>: Based on the symptoms youve described, its possible that you have contracted syphilis. This sexually transmitted disease can cause itching of the skin, an increased heart rate, and complications during pregnancy. Its important that you get tested and receive treatment as soon as possible to prevent further health problems. 