Agreed. That's that's why I'm curious if they were continuing.

(Though one time I did have one whose obvious symptoms only lasted a day and a half. Woke and literally jumped out of bed and was bouncing off the walls BIG TIME the whole time. Freaked BF out so much (he wanted to call my psych). Energy was off the charts, talking rapid fire 7 things at once, pretty much impossible to follow, obnoxious as hell, bounced back and forth across bed shouting, "get up! Getupgetupgetup!" at BF (in late forties that must've been a sight, lol), later literally jumping up and down talking to (at) him -- could not stay still at all, couldn't stop laughing even when very inappropriate, thought someone would get electric shot if they touched me etc etc. No situational. No chemicals, not even coffee. No one could have seen this and thought it was even REMOTELY normal. TG it was euphoric! Or he would've hauled me in for sure. Normally, I'd not even consider calling something I had only a day and a half hypomania, but for the sheer intensity, completely untriggered. It may have been preceeded or followed by a lower grade one, but it was not obvious, especially confounded by this stuff.)

But outside of something like THAT, lol, yes, it should last a few days (or more). I know DSM-IV put it at 4 or more. Not sure what DSM-V has to say off the top of my head.