Strep test came back negative, and I have already had mono before. Assuming it was a sinus
infection, they prescribed amoxicillin, and that took care of the symptoms in under a week. About two weeks after being off of the amoxicillin, the symptoms began to return. I went back to the doctor and the prescribed some different antibiotic, which again, worked fine. Yet again, a few weeks after being done with that antibiotic, the symptoms returned.