Cold, flu, or something else

Last Saturday I threw up and I figured it was from something that didn't agree with my belly and then that very next day I woke up with a terrible headache and sore throat. Then that night I got so hot that I was almost sweating, I had chills, and a major sore throat. Monday morning rolled around and I still had the headache and sore throat but no fever or chills but I developed a little cough. And now it's Friday and I have a cough that hurts my chest and head soo bad. I'm coughing up mucus and sometimes my chest and back feel tight. I've been taking cough syrup and Tylenol but nothing is helping at all and my boyfriend is destined to take me to the hospital. I don't want to go but he thinks there's something wrong with me and doesn't want to risk it getting any worse. I don't want to make a bigger deal out of it then what it seems.