4. Viral Fever
Cancer symptoms may rise from simple fever that comes and goes in intervals. It can start from simple flue that many ignore at first. But continues occurrences of even the simplest form of fever may suggest that you immune system is weakening. Fever is common among all cancer patients, no matter what type of cancer, but initially fever is going to take over the terms.
Fever may escalate as your situation worsens which comes in terms of the spread of cancer cells. But it can also happen during treatment periods as the immune system tries to re-adjust with the medication. Either way, during cancer, your health is going to go through different cross roads that results in fever all the time. The immune system has to act accordingly to fight the infections that happen because of cancer and this is a very difficult journey for your body.