In this case what is the meaning of the phrase "can be little light headed". I was searching and I found "mareado" (spanish) but I think that it doesn't has sense .... Can you explain me, please, what is the meaning of that phrase in this case?

In this case what is the meaning of the phrase “can be little light headed”. I was searching and I found “mareado” (spanish) but I think that it doesn’t has sense … Can you explain me, please, what is the meaning of that phrase in this case?