<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing elbow cramps or spasms and low back weakness. What could be the reason behind this?  <response>: You might have Histoplasmosis, which is caused by inhaling spores of a fungus called Histoplasma capsulatum. It can affect your lungs and spread to other parts of your body, causing symptoms like the ones you described. 