This Buff Americauna pullet is eleven months old and has not begun to lay. She has a small, dry vent. She has never roosted more than a foot high off of the ground and currently she is fond of a cinderblock on the floor of the coop. I'm sorry for the dark video but I was in the coop beside hers at night, and she begun having episodes. I'm also sorry for all the dust in the coop I had just ticked off my rooster and he kicked up a lot of debris. I've been giving her vitamin E and Selenium for about four days now. Any thoughts on diagnosis, treatment, and prognosis are welcome.