Not sure what to do. DS is 14 weeks. Towards beginning of this week he started getting a cold. It's progressively gotten worse. Yesterday he started gasping for air, then vomited, then gasping again. I put him on boob and he calmed straight down and went to sleep. We then had two episodes of coughing so hard he was sick. 
I've got the humidifier on, olbas oil in humidifier, keeping him upright on me. Last night he did not sleep well with coughing and congested nose. The cough isn't barking but it worries me that he's coughing until he's sick. What should I be doing?