I went over to a friends place last friday night where 3 of my friends were smoking ciggerettes. I had no idea they were going to be smoking since they usually go outside, but not that night. So once I got there I chilled for around 2 hours all the while 3 of my friends chain smoked ciggerettes in a small trailor. Now after I left and went home my sinus felt like it was plugged up and sore. Then for the next few days it turned into a sinus infection and sore throat with yellow thick phlem.I coughed up, and I felt really weak like I been hit by a truck and all my muscles ached kind of felt like a mini flu. I just want to know whats going on here. If this is all from 2 hours of exposure to second hand smoke or a virus? My girl friend didnt get sick and we have been kissing eachother. I never get sick, and just find it odd I get this sick after being around ciggerette smoke for a couple hours made me feel horrible. like I caught cancer or somthing.