I took a nap yesterday less than an hour and a half, I was perfectly fine before falling asleep. When I woke up though I had a bad pain in my right lung/rib cage. That was 12 hours ago. It's now 530 in the morning and I'm still awake it hurts still. I'm calling the dr as soon as they open but have been researching possibilities and I'm leaning towards reflux, I vomited a crap ton, not unusual for this pregnancy. But my lung/rib cage feels like it's being squished. I can't lie down. It almost completely goes away when I stand. Has anyone experienced this and what helped??? I'm 20 weeks 5 days my doctor doesn't open for several more hours. I don't feel it's severe enough for a hospital trip yet...