Idiom of the day :- Make one’s head swim

Usage, examples and definition of the Idiom :-

‘A sight like that makes my head swim !’ Seth exclaimed. ‘Why ?’ Bighead asked. ‘For the simple reason that nobody here knows how to swim. Therefore, if one of those guys falls into the sea, none of us could rescue him !’ he cried. ‘I guess that explains why on one has ever left this island alive. Bighead replied. Something thatmakes one’s head swim is something that is puzzling or causes confusion.