I have senses overload whether I'm up or not. Just when I'm up it's even worse than usual. I don't know if I am this way because I'm highly introverted or if it's something like being near an autism spectrum in some respects (though I am not autistic by any means). Just things overwhelm me all the time, like going to a shopping mall or a zoo or a festival things other people seem to think are fun just are pretty much sensory overload for me. And when hypo, it is exponentially worse.