<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello, Im 49 yrs. old and had a series of issues, this past year regarding my upper respitory, including pneumonia twice. Just recently, I feel im getting these symptoms all over again, however, I have heaviness in my legs along with this, which I never had before.Could this be something entirely different?  <response>: Respected user, Warm welcome to Chat Doctor.come have evaluated your query thoroughly. Respiratory issues are in relation with lung infection either relapsing pneumonia or else. Legs issue may be in association with lungs or not as - weakness induced cramps - other pathology as low hemoglobin, vitamins, minerals, anti oxidants - mobility related issues - perfusion related compromise - other systemic disorders. Needs detailed case evaluation with series of necessary lab tests, x-ray of the chest with or without Doppler examination of the lower limb according to the clinician concern. Feel free to ask any further questions. Regards. 