I got a set of dentures two week ago. I had a previous set but never really wore them. They are about 4 year old.

The top set fits great, better than I ever dreamed.

But the bottom just hurts to set them in. And if I bite down, the pain is not bearable. I have been back twice to get adjustments but still pain. Anyone have suggestions..

I am going back another trip in the morning..

That is not unusual that upper or lower don't fit any longer. I guess it is time to put the money out for a new bottom set. If you mean by adjustments reclining twice, twice is as much as you can try before buying a new plate.