Renal cell carcinoma

Caramel16

Had right kidney removed laparoscopy surgery in February. The mass was found on a CT scan that doctor was checking me for pneumonia. No symptoms. During surgery I developed a collapsed lung which was treated while still in hospital post surgery. 3 months have passed and still dealing with times during day I am exhausted . I am an active 76 yr old. Any comments on how to improve energy would be appreciated. I am told it takes minimum of 3-6 months to feel normal. Thank you for your input.