Faintness used in a sentence

Faintness in a sentence as a noun

The procedure was now preceded by a severe bloodletting, in which the patient was bled, often to faintness, in order to 'purify' the blood and prevent fever.

"Thus, while Betelgeuse may explode tomorrow or any time in the next few 1e5 yr, the unprecedented current visual faintness is unlikely to be a harbinger of its impending core collapse.

When watching it at normal speed the faintness of the overlay made this almost invisible except during fast motion, giving the illusion that the overlaid video was sped up during those parts, but if you look at it in freeze-frame mode the very first frame gives the game away.

Am I touching the air behind me?When I feel a surface and I know if it’s sharp knife, blunt knife, wet stone, dry wood, slippery or grippy, briefly static electrically charged, hot, cold, crumbly, greasy, delicate or solid, is that all just “touch”?When I pick up an egg and know if it’s real or metal, slipping out of my fingers or held gently, at risk of cracking or just right, being properly supported or about to fall to one side, balanced or weighted inside, hard boiled or sloppy inside, is that all just “touch” one sense?When I feel the thump of a heavy bass line in my stomach - touch?Stomach ache - touch?Headache, in a brain with no touch sensitivity?Feeling radiated warmth on face - touch?Tiredness, hunger, thirst, spine tingling, faintness, muscle ache, body feedbacks - touch?