Hi I have an 11 day old Angus heifer calf that I have had for 9 days and she used to drink her milk fine without choking, now even with a lambs nipple on the bottle, she will be breathing fine and she will start drinking and she starts sounding congested, last night she had a little milk come out of her nose, and she still sounded congested this morning and had snot in her nose, the calf bottle nipple is brand new, Never been cut same thing with the lamb nipple. It takes her 20 minutes with the lamb nipple to get a quart and a half down and she still chokes on it, she was about 30/35 pounds when I got her. She's gained about 10 pounds and height. She's still little, she finally started drinking water from a bucket 3 days ago, so far she Won't drink the milk from the Same bucket, she will halfheartedly suck on my fingers but backs away from the bucket if I try to use my fingers to lead her to the milk in the bucket.