Hi,I Was Told By My Doctor That I Got Bronchitis,and

Hi,I was told by my doctor that I got bronchitis,and after having an X-ray and blood and urine test I 've been told that the results are normal and there is nothing that I have to be worry about.i have been taking Sandoz Azithromycin which is 250 mg and it's 6 tablets and tomorrow I'll be done with it but feels like every thing is getting worse(coughs-weakness feeling-pain on my eylid and so on.and it's been couple hours that I am having a very bad lower back pain and when I press scapula muscles on my back shoulder it really hurts!Thank you for your time.