What Causes Fever, Vomiting And Abdominal Bloating Despite Taking Antibiotics?

yes I'm a 60 year old female, I caught a cold on the way back from the Caribbean, a nice big head cold, lots of congestion, but did not go to my lungs, it took about 2 and 1/2 weeks, to get over it, I had a tear ducked and septum surgery still had end of cold but no fever so they Oked me for the surgery, I was on antibiotic for a week, cendifer, not positive about the name. So 2 days ago I had a fever and spent the day in bed trying to get warm, I have had diarrhea, pretty much from the beging, then today , I threw up in the morning, not bad from your bowls type of throw up, more like from the top of my gut. kind of strange for me, I don't throw up. now this afternoon I am so bloated, I cant wear pants and my whole abdomen is very sore, I look like I'm pregnant, is there any thing I can take at home to get the bloating down ? I have been very careful in what I'm eating, ALLOT of water. That's my question. started on Jan.21 2017 - Feb. 25 2017