While you may pass of your everyday fatigue as nothing serious, experts warn that as soon as you notice any  major changes in the way your body functions or feels, see a doctor. You never know you could be developing cancer within. So act fast. Here are some of the signs you should pay heed to:

• Unexplained weight loss

• Persistent fever

• Persistent aches and pains

• A nagging cough

• Lumps in the body

• Unusual bleeding

• Changes in bladder function

• Sores that never heal

• Changes on your skin

• Feel tired all the time

AW: Suchorita Dutta Choudhury