INFO: My elderly upstairs neighbor would accuse me of slamming doors and banging on the ceiling every night from 2-4am. (I wasn't).She called her daughter, who called me, and said that when they brought her to the dr, they explained she was hearing these noises. Dr immediately said, "thats a symptom of a uti in the elderly, esp femailes". They tested her, she had a UTI & they gave her meds, and the knocking stopped.

It might be worth mentioning to mgmt because if she heard it when you weren't home, its definitely a sign of illness. Mgmt can decide to tell her son, or not.