I have bronchitis but feel terrible =[?

I went to the doctor yesterday and he told me i had bronchitis but i feel terrible. My whole body feels tired my eyes feel puffy and big. I want to sleep and just relax but is that normal? My chest hurts when i breath i cough and my ribs hurt. I keep sneezing and blowing my nose. I've have bronchitis before but havent felt this bad? Im taking Azithromycin and prednisone is that whats making me feel so ugh? thank you for your help