Possible side effects from surgical treatment for lung cancer are:
difficulty breathing deeply, difficulty turning over, pain and weakness in chest and arms and shortness of breath.
Was she recommend physical therapy or a rehabilitation program to help restore her strength and range of motion?
Smoking pot usually causes many respiratory illnesses and can promote cancer of the lungs and other parts of the respiratory tract because it contains irritants and carcinogens (marijuana smoke contains 50 to 70 percent more carcinogenic hydrocarbons than does tobacco smoke; it also induces high levels of an enzyme that converts certain hydrocarbons into their carcinogenic form)
Also, marijuana users usually inhale more deeply and hold their breath longer than tobacco smokers do, which increases the lungs' exposure to carcinogenic smoke.
So, these suggest that smoking marijuana may be more harmful to the lungs than smoking tobacco.