<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing shoulder cramps and joint stiffness lately. Do you have any idea what could be wrong?  <response>: Based on your symptoms, it is possible that you have Patau syndrome. Its a genetic disorder that can cause various physical and developmental abnormalities, including muscle stiffness and weakness. I would recommend further testing to confirm the diagnosis. 