It's perfectly normal for babies to make these noises, but it's also possible that there is a serious medical reason for them. (momtricks.com)
If there is no clear medical reason for them, it could be stress. (mindbodygreen.com)
Yes C - sections are there when they are necessary and needed but I strongly believe many doctors push or make that decision without there being a medical reason for it. (crunchydomesticgoddess.com)