If she has any bowel movement changes, especially difficulty having a
bowel movement, topical pain like she is experiencing could be a partial
obstruction. If she had a complete obstruction, she would have about 12-24 hours to get it relieved or it would be a fatal condition.
I had a partial obstruction, and my symptoms were what you report, and it became a total obstruction that led to emergency surgery. When the bowel is obstructed, organs start shutting down rather quickly.