A month ago, I has congestion, headache and coughing. I went to a clinic and they gave an antibiotic, z-pac. I finished that and felt somewhat better, then had a relapse. I went to my dr. and got another antibiotic which made me very sick, including nausea, loose stool, bad headache. I stopped it and called my dr., and got put on an inhalor. I tried it a few days and did not get better. Now I still have congestion, a lot of coughing, back pain, chest discomfort and bad heatburn. What can I do?? What can I have??