light headed

He was light headed when I found him trying to get on the boat.

Emma was equally earnest—more so perhaps—but she was light-hearted (not light headed, observe) and volatile.

So thought David, who, breathless and light headed, was now almost carrying Anne.

Oh, uncle, I forgot; I am so light–headed and foolish, I forget everything now.

Some were too light headed to make that safe, so Steve and Bob sent these men back to run the rest of the line up to the furnaces.