Super loud fan can happen when there is buildup on the front of the fan blades, and you aren’t going to see that easily.
But yes, it sounds like you need to clean it, it’s running out of balance.
There is a procedure for cleaning the exhaust fan here:
It’s much easier to clean on a Basic and Plus model machine than for a Pro.
(I prefer to not use that spray, since I saw someone had trouble with it along the way, so i clean by hand periodically.) That takes a lot longer, but the writeup is here: