Have any ladies experienced weird changes during postpartum? I can’t use my shampoo and conditioner…

Have any ladies experienced weird changes during postpartum? I can’t use my shampoo and conditioner now because it just makes my head itch so bad. My whole body itches too. Pads I’ve been using since I started my period in the 6th grade now irritates me. I’m used to breaking out. But this itching all over thing is new to me