Brain fog
Also the so called brain fog shows immediatly after cosumption of histamine loaded foods. It's comparable to the feeling of being slightly tipsy and not able to think clearly. But without the fun, because the point wasn't to get drunk; perhaps you need to work or think straight. It is very annoying, to loose control over the brain and awareness just because of food. And it lasts for several hours or days. If the cause is not found.