My first baby had thrush, caught from me while being born normally. The doctor gave him antibiotics which must have messed up his gut because he had severe colic for nine months until I fed him a little yogurt. His little brother had mild colic for about 3 months. He also would start running around a lot about 15 minutes before having a bowel movement as he got older.
Both boys had a colonoscopy recently (now in their early 50s). They both had a sharp bend in their colon that made it difficult for the doctors to insert the instrument. When the little one would scream and cry, I found that pressing down on his belly was helpful. I guess it reduced some kind of gas or fecal pressure at that bend in the colon. However, I would recommend that anyone with a colic suffering baby provide yogurt or other probiotic in a small amount providing the doctor does not have a GOOD reason why they should not have some. I was NOT feed yogurt regularly, it was just a taste, but it apparently did the job.
Very interesting!
Also, since I’m a grandma, I can only observe what the young moms are doing. I noticed one had some probiotic drops to give her newborn. Never heard of them when mine was a baby decades ago.