I am having very bad neck pains head pains and back pains?

It could be a number of things... Maybe your pillows, maybe your bed, maybe your posture, the way you're sleeping, or physical activities (such as sports). I would recommend starting by using some different pillows, and (if you can) sleep in a different place... If the pain goes away it's probably related to what you are sleeping on/what pillows you are sleeping with. If it doesn't, it may still be the problem. You kinda just have to use powers of deduction to figure this one out. Good luck and best wishes.