Cancer might be one of the main reasons why you feel exhausted. Fatigue should never be ignored. Fatigue is different from normal tiredness. We do get sleepy and weak sometimes. This happens after a hard day at work, for example. Fatigue, on the other hand, makes you feel weak even after a night’s sleep. It weighs on your mind and body and you can hardly accomplish simple tasks. In this case sleep won’t help to resolve the issue. People who have ovarian cancer do not feel hungry – they lose appetite, eat less and do not provide their bodies with nutrients. This also influences your overall condition. The tumor steals the energy and won’t let it be delivered to your healthy cells.