Wow, your post is a reminder that there can be so many factors involved with EC. I never thought about hormones in pregnancy. You probably felt really excited about the baby when you were pregnant. Maybe all that excitement takes away the stress. Then when the baby comes, people tend to get stressed by taking care of baby all day or having their body recovering from childbirth. I also wonder if the increased vitamin intake during pregnancy helped your lips (although you were still low on some vitamins, I assume you increased vitamin dose while pregnant). Is a stool test the only test to determine if you have malabsorption? Then there’s the suppressed or overactive immune system- I wonder if the excitement or the hormones helped your immune system.