Taking exams symptoms and conditions

I have many of the same symptoms as everyone else... miserable stomach pain, diarrhea, terrible headache and heartburn. this drug is awful. I've never had this sort of reaction to an antibiotic before. Today is only day 4 and i'm afraid to take the pills. Has anyone heard that the side effects get better as your body gets used to the drugs?? I'm in the middle of taking exams and I was worried about this throat and ear infection interfering with my studying. I think I could have managed the infection better than these drugs.