Ive been sick with what i thought was a cold for about 1 week. The usual stuffy nose, sinus pressure, and pnd causing me to cough and throw up. I started taking benadryl which helped alot and yesterday i seemed much better, that is until night fell, i got really bad sore throat and just nonstop coughing and vomiting. None of this worried me until this morning. Now every time I cough I get extremely sharp headaches, the pain is on both sides and like the back of my skull. Any ideas or knowledge if this indicates something serious?