When Tyson is coming down from an anxiety attack or a PTSD episode, he struggles the most with his sense of space rather than missing time.
With his form of Synesthesia, Tyson is used to knowing exactly where he is. That moment where he’s coming back to himself and he has absolutely no idea where he is, is the most terrifying moment for Tyson.
Even before he realises precisely what is wrong, he feels completely off balance when he doesn’t know where he is.
Lost time doesn’t worry Tyson anywhere near as much as it should. He almost shrugs it off. He knows that he gets tunnel vision, so when Tyson doesn’t know what he was doing for an hour or even an entire day, he doesn’t worry. Two days or longer, Tyson will care, but otherwise, he dismisses it too easily.