Had strep throat a month ago took amoxicillin, went back to doc after dosage, still had it. got z-pac.finished that week ago lymphnodes swollen normal?

Mononucleosis?: Have you been tested for infectious mononucleosis (mono)? Strep throat is often present at the same time. Amoxicillin always is effective aginst strep, and even without treatment, strep would clear sooner -- but mono can last a few weeks, with sore throat and lymph node inflammation. And mononucleosis is common at your age (19). Discuss it with your doctor.