They do eventualy go away but mine were so big that it took almost 6 months to not notice anymore.

They had shrunk and were going lower into my abdomen and eventually they all went away. ( I had at least six of them)I don’t feel anything now.
While we’re on the subject of falling on our buttocks. I went to sit on the edge of the bed in the hospital and landed on my backbone after the bed moved because somebody forgot to lock it and it rolled backwards. I fell on my derrière and cracked my backbone and it’s never gone away. It’s milder now a few months later but I have to sit on each flank separetly as I can no longer sit and put pressure on it.