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Acetaminophen is a pain-killer. It's not the only pain-killer that can cause damage to the body.
Pain is not caused by painkiller deficiency.
It's shame that people have been led to believe that the best thing to do if you have a pain is to rush and take pain-killers. It isn't - and sometimes the pain-killers don't work anyway. And all pharmaceuticals have side-effects.
I must state that my experience of great and lasting harm from pharmaceutical drugs leads me to view them with disfavour. If you are like me and would prefer to avoid taking drugs if you possibly can, then you may like to try cutting down on salt and salty food. This does help with a lot of pains, particularly chronic pain , such as that from osteo-arthritis.
It's also helpful to consider your nutrition. Many people are short of calcium, and according to a great deal of recent research probably most of us are deficient in vitamin D. Remedying these deficiencies can help reduce chronic pain and improve sleep. - But don't go from one extreme to another and overdose on these nutrients.