lightheaded

Adj.	1.	lightheaded - weak and likely to lose consciousness; "suddenly felt faint from the pain"; "was sick and faint from hunger"; "felt light in the head"; "a swooning fit"; "light-headed with wine"; "light-headed from lack of sleep" Synonyms: light-headed, swooning, faint, light
	2.	lightheaded - lacking seriousness; given to frivolity; "a dizzy blonde"; "light-headed teenagers"; "silly giggles" Synonyms: empty-headed, featherbrained, airheaded, dizzy, giddy, light-headed, silly

faint, ill, light, light-headed, sick, swooning