Fecal matter symptoms and conditions

Female-18
About two weeks about I was running a fever and had a horrible cough. After my temperature hit 103f I decided to go to the ER. The doctor told me I have a sinus infection. There they didn't really have much interest in what was wrong with me and decided that a Z-Pak would magically solve all my problems. So the first couple days my fever stopped, I felt a little better. Soon after that I had the WORST stomach pains I've ever had before. They brought me to tears, not to mention the diarrhea was pure water with little fecal matter.. I felt better with a high temperature than going through the side effects of Z-Pak. I also had dime sized amounts of brown colored phlegm that appeared when I coughed. I couldn't taste anything. For 6 straight days I was stuck to the couch or bed. Every time I stood up I got the drunken spins and felt like I was going to black out. It's been about 8 days since I started the Z-Pak and the cough has virtually went away. I still spit up a tiny amount of phelgm. I can eat, which I am ecstatic about since the only liquid things I drank while taking the anti biotic gave me severe diarrhea. The only symptom I have now is diarrhea. Only at least now I don't have to 'go' every 5 minutes or whenever I put anything in my stomach. I think the worst part of being sick was taking the dreaded ZPAK. Everyday I was thinking I could feel well enough to go out and do something only to have to race home to lay down.
CONCLUSION-ZPAK TWO THUMBS DOWN!