Renee, just to be on the safe side, you might want to have a maintenance person check the wiring in your ceiling fan. Just because the maintenance people on the roof don't cause it to blink, you might want them to check it anyway. Electrical circuits can become a bit loose in something with it's own motor, like a ceiling fan. It isn't always a vibration thing, but can be the expansion and contraction of things as they warm up and cool down, causing a loose connection inside the fixture itself. There are ways that an electrician can check it, just to make certain it is working properly, and all wiring connections are tight. Any sort of loose connection can be a fire hazard, and it is just better to be safe. I would be careful not to leave the fan or light fixture on when you go to bed, until they check it. I am not trying to scare you, but just want you to be safe!
I was an engineer for 30 yrs, and I worked primarily with electrical power. So, I am kind of a safety nut... born out of a healthy respect for what electricity can do. ;-) Stay safe!!!
Blessings,
azspirit