Lung cancer will basically show generalized weakness in the late stage.
Firstly, lung cancer belongs to consumptive disease, in the middle and late stages, the tumor consumes the body’s energy excessively, coupled with the decline of digestive system’s absorption ability, so anemia and malnutrition will occur, and if the condition is serious, general weakness will occur.
Secondly, brain metastasis occurs in advanced lung cancer, leading to intracranial hypertension and nerve damage, which may also lead to generalized weakness and dizziness.
Lastly, when advanced lung cancer patients suffer from multi-organ metastasis and spreading, which affects organ function and leads to complications such as shock and low blood pressure, it will also cause generalized weakness and pallor.