Pain and suffering are not the same. Fish and fishermen discuss the stinging difference.

Come to X’Tzu’s Zoo and listen to fish and fishermen discuss the stinging difference between pain & suffering...

It’s important that you learn to draw a line between the two.
 
When a fish is hooked, it feels the pain, but doesn’t experience the same current of ‘suffering’ the fisherman does. It doesn’t swim back and forth contemplating life and death, nor its destination as sushi or sashimi… but don’t get me wrong friend, it does take care of itself.
 

Considerations

People hold onto their suffering, while defining it as ‘pain’. This provides cover, so there’s no recollection of the moment they choose their condition. This choice was built to create a movie allowing for the suspension of disbelief. Whenever ‘pain’ and ‘suffering’ are bantered as if having the same meaning, it’s going to be a long time (if ever in this ‘lifetime’) before the one using them has enough courage to regain their original unclouded self.

Good thing duality has a built in mechanism called the ‘appearance of life and death’ to cure this malady!