I just went to the doctor Tuesday after being sick 9 days and OTC meds did nothing. By the time I got there they thought I was the walking dead. She found my case pretty hard. She said I think you may have a bacterial upper respiratory infection. She gave me some amoxicillian. Well now its helping the head part but now my chest is killing me and I can t even lay down in the bed. Is it the sickness getting worse? Or the antibiotic not helping?