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![](https://lemmy.world/pictrs/image/913b482d-9012-449f-bc87-b1f4463e7154.jpeg)
This image is kinda similar to my experience. It starts as a very small spot, often just blocking a letter or 2 of a word I’m reading, then spreads out in an arc or rough circle.
One interesting thing I’ve noticed as I get older (40s), is that if I’m moving over a distinct enough pattern, like a tile floor, the area inside the aura updates slower, or lags behind the surrounding (unaffected) area.
Also as I’ve gotten older, the pain following the aura has thankfully gotten lows severe, and sometimes doesn’t happen.
Probably more like ground beef.