Nicky, it could be a fast letdown? Or it does sound like Zyon was a few wks back.. It turned out he has silent reflux...
You could try calling your MCHN, or the MCHN HOTLINE....

Rebecca, nope the bicarb is just a nice soft feeling in the bath & I have always used it in my babies bath water, never have they had any skin issues, or the milk rash either, it's very gentle on their skin..