Breastfeeding diet.

Hannah • Hey my name is Hannah. I am a 27 yo SAHM 💙👶🏻 💙4/29/16 💙👶🏻 💙4/23/18
My LO has had diahrrea for the past few days. I took him to the pediatrician who said it was normal for EBF babies and to watch my diet. I want to start a food journal to see if specific foods irritate him but I can't seem to get started. Any advice or tips?