Each pregnancy can bring different symptoms and different ways of being uncomfortable. I have gone through three pregnancies and each one was different and unique. During one pregnancy, the most difficult symptom was being tired. I believe I could have slept the entire nine months easily. In another pregnancy, I suffered from morning sickness, the whole time. And in the third pregnancy, I had heartburn. Heartburn that stopped me from sleeping. Heartburn that severely limited my diet. Heartburn...