I'm 20 weeks pregnant. I had a cough over a week ago that went around our house. Everyone else has shifted it but I'm either fine or coughing so hard it feels like my chest is ripping open and I throw up. When I'm coughing it feels like I need to get something out, sometimes there's phlegm but other times I'm just desperately coughing and can't stop and nothing comes up. I can go hours without coughing and then I have an hour or so of vicious coughing fits and vomiting and my stomach muscles kill from it! What is going on?!