How To Treat Severe Intermittent Pain In Body And Chest Area?

I'm 33 weeks pregnant. I've been having shooting pains all through my chest, back, arms and legs since Saturday evening. The pain started in my chest and was worse when breathing deeply; radiated to my shoulder, neck, back, and arm. Now I just feel an occasional shooting pain throughout my body and in different places in my chest. My legs also began to feel tight and heavy. I had a doppler test done on my legs last night with no signs of DVT.