I'm 38 weeks today and I'm experiencing tightness in my chest. It's not "painful" per se but more discomfort and a full-like feeling. I have a history of major anxiety, do you think it's anxiety-induced? I've been having such horrendous anxiety about upcoming labor! I'm so terrified of dying during delivery. I've read these terrible things, like an amniotic fluid embolism or cardiomyopathy and now I can't stop thinking about something happening to me! Anyone relate???