Vibration from a fan causing regurge?

Can the vibrations from a fan placed on top of the rack cause regurge? I had two snakes regurge after the last feeding. The one on top of the rack, and third one from top.

I checked temps everything. Only difference is I switched the fan from low to high recently to try to normalise the temperature in the room top to bottom.

If it is, how can I set up a fan such that it is not on the racks? Right now I have a room with three walls with racks, oil heater in the middle with a fan on the ground blowing towards the empty wall, then a fan high up on a rack blowing straight up to the ceiling. Seems to get the job done, but with this new problem, can't have that fan running anymore.

Also will anti vibration rubber pads work? I have access to ones like these.http://3.imimg.com/data3/IN/JH/MY-10...ds-250x250.jpg

Stress is usually the cause.
I would imagine a vibrating house wouldn't be too comfortable.

Why does the fan have to be on the rack?

I have snakes on all four walls in my snake room with an 4ft tall oscillating fan in the corner. Works great.

My problem is that the temperatures are much higher near the top of the room than the bottom, and I found that a fan up high blowing straight up to the ceiling pushing air down solved the problem. There is no room to build something else to put a fan up high.

Anyway, how to solve this?

https://www.amazon.com/Lorell-LLR492...wall+mount+fan

Without seeing the room it is really hard to help. I still don't understand why the fan must be on top of the rack. That doesn't make any sense. Regardless a wall mounted fan should solve your problem.

I am not allowed to drill holes into the wall.

That could have been mentioned earlier.

This is similar to the fan I use. Get something like it and point it up to the ceiling.

https://www.amazon.com/Lasko-2521-Os...words=Tall+fan