It’s happened every single time I’ve received a new pair of progressive eyeglasses, since I got my first pair in 2012 when I wrote:
Everything’s alternately blurry and clear. They say you get used to it: I hope so. My patience for spatial discontinuity is not great.
The destabilizing experience of having everything seem slightly off for a week or two as my eyes and my brain adjust to the new prescription; and, with that, mild vertigo, increased possibility of falling down the stairs, eye fatigue, neck and shoulder strain, and, by times, an overpowering feeling of wanting to smash my new eyeglasses with a hammer and revert to my old prescription.
I’ve been through this enough times to know that all I need is patience, but not enough times to prevent me from doing a lot of “progressive eyeglasses prescription problems” Googling.