Hello dear I understood your concern deeply. @ These much data is not confirmatory of Histoplasmosis which require analysis of bronchoalveolar lavage, antigen detection in blood / urine via ELISA / PCR test . @ Your breathlessness is age related compromised respiratory drive of your lungs which remain under remission not get cured totally . @ Can definitely avail second opinion , along with I will recommend certain basic guidelines for you to have a helping edge in your discomfort # regular basis walking in fresh air to rejuvenate your lungs with oxygen, deep breathing exercises , YOGA for 30 minutes without failure daily # maintain hydration with plenty of liquids # nutritious diet with necessary all ingredients as per your age # extra tulsi, turmeric help from ayurvedic corner # keep your hemoglobin , blood sugar, BP , Cholesterol , weight under control # avoid stress , have sound sleep of 6-7 hours # avoid exposure to excess cold / atmosphere with so much pollens , if needed should apply a face mask # prefer reclining position always when resting # avoid prolong stay in air conditioners / coolers # quit smoking / alcohol / any abuse substances if used Hope this will help you definitely. Wishing you a healthy life ahead. Thanks for using Health care magic. Regards .