Also, I meant to say, there is nothing wrong with cutting a set short if the feeling becomes too intense. Many times, my max weight would become too intense in the middle of a set, I would reduce the weight, and it would still be too much. I would then stop the set, and start the next one at the lower weight. This would usually be fine.
But sometimes, I would have to drop the weight a lot after I could not hang the next lowest weight. I felt this was because of some bigtime deformation at the higher weight. Just another example of listening to your body.
Do not fight it. You seem to know when your body is telling you enough is enough. Please listen. If you push it, you will cause deformation to the point of injury. This is not a sprint, but a marathon.