Please help (warning: touchy subject)

I have moderate to severe anxiety and I'm also 35 weeks pregnant. I have already been getting really anxious for the whole child birthing process to the point where it's hard for me to sleep at night. Now earlier this afternoon I was scrolling down my Facebook news feed and I see an article about a women who suddenly died after giving birth from a placenta embolism and that's all I been thinking about. My head has been spinning and I feel weak and like I'm just gonna pass out. I'm pretty sure its the anxiety but I don't know how to shake the feeling. Please help.