I used to have all this as a chronic weed user, if you're the same maybe try stopping and see if they go away. The only one I still have is the flashing lights, but it's rarer.
It's actually because sailors were often looked down upon in high society and they used their elbows to keep their plate from sliding around on the table as the ship rocked back and forth
Why in the hell do push notifications need to be generated on google/apple servers? I'm sure our phones are more than capable of processing the information from the app to the lock screen.
School talent shows are absolutely a thing