Celexa and Xanax while nursing?

My ob has prescribed these (I was on them pre pregnancy, and Celexa during part of my pregnancy) for ppd and anxiety. I'm not thrilled about the potential side effects in baby. I talked to my ob and also his pediatrician, and they both agree that the benefits outweigh the risks, and that I shouldn't stop nursing. I'm not asking for opinions on if I should take either, just wondering if anyone has taken these and if so, did your baby have an adverse reactions? If I notice any difference in baby, we will look into changing medications.