The phrase "feeling light headed" is correct and usable in written English.
It can be used when describing a sensation of dizziness or faintness.
Example: "After standing up too quickly, I started feeling light headed and had to sit down."
Alternatives: "feeling dizzy" or "experiencing vertigo."
"I started feeling light-headed a lot and I had a couple of fainting episodes," he told me.
This consisted of one or more of tremor, feeling light-head and restless, urinary incontinence, Grade 2 visual disturbance anxiety, slurred speech, confusion and expressive dysphasia, and in one case breathlessness and left ventricular failure.
My throat closes up and I get sweaty palms and I start feeling light-headed, dry-mouthed.
They'd scared him at the clinic, they always scared him, and he was feeling light-headed on top of it.
All through Q1, we were busting our ass at yoga class and she couldn't get any of the benefits because she was feeling light-headed from a single Sun Salutation.
Revis bristled when asked whether he sat out seven-on-seven and team workouts in protest of his contract, as he did during a June 2010 minicamp, when he exaggerated a hamstring pull and complained of feeling light-headed.
She can be poked and prodded now without feeling judged by the hands examining for error, can watch her blood coil up out of her arm without getting nauseated, can take the cold metallic sting of the stethoscope without feeling light-headed at the idea of her own beating heart.
British number one Heather Watson lost in the first round of the Australian Open after feeling light-headed and requiring treatment from the doctor.
The 22-year-old said she suffered from dizziness, nausea, low energy levels and spells of feeling light-headed as she lost 6-4 6-0 to Bulgaria's world number 52 Tsvetana Pironkova.
