Sorry, but you don't really "get used to it." I think that is part of the old school of thought that told us the more pain we experience, the less it affects us. Modern science has proven otherwise. Actually, the opposite is true, the more you have pain, such as chronically, the chemicals that fight the pain in the body normally become depleted. It is then that you MUST take pain meds that simulate those pain fighting chemicals.
You can do imagery and meditation and all sorts of things to "make" more endorphins, but just because you have had pain for a long time, doesn't mean you don't feel it. (Disabled due to industrial accident, 20 years, 24/7 pain.)
Thanks for asking!

(((bebop)))