I BF'd both mine too -DS for 6 mo, dd for 2. Turned out, she was allergic to milk.
Had to go on a soy product and oddly, now she's vegan, so she does a lot of soy lol.
But it did seem to make a huge diff with my son. He was always super healthy, still is at age 25.
Anyhoo, I can see why you're too busy to get on here much. I'm watching grandbaby 3 yr old. Yikes. One kid, no time to do anything.
Good luck!