I have these "faints" moments, especially when am lying on my back and head is looking up. i feel dizzy, like i almost hv to hold on to something?

Vertigo : It is impossible to give you a diagnosis. You need to see your doctor,be your have an exam and any required work up to get a definitive diagnosis Good Luck

Agree with Dr. F: What you described suggests benign positional vertigo.

Dizziness: If you can pinpoint your symptoms to head motions, an inner ear disorder is likely. Your physician, Otolaryngologist or neurologist can perform an examination to determine the problem and recommend treatment. Make sure that they also examine your carotid arteries as well since elevating your head produces symptoms.