Ohmygosh yes, I get those occasionally as well. Usually they happen when I'm tired, or yeah, doing something different. I remember once when I was a little kid I went on a vacation with my mum and my brother, and we were shopping at some outlet stores. That entire day felt so weird and foggy I didn't know what was going on. But when I went to sleep and woke up the next day I happened to feel fine, so I don't know. xD Maybe it was just because I was somewhere different, or hadn't had enough rest the previous night.
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