Almost 2 Weeks Ago- Feb. 25, I Developed A Bad

Almost 2 weeks ago- Feb. 25, I developed a bad cough and felt extremely tired. When we returned home on the 27th from Jamaica, I went to the doctor. She gave me Tamiflu, an antibiotic, nose spray, inhaler, and cough medicine with codeine. 3 days later I went to another dr who changed me to Z-pac. She said my lungs sound good so it isn't pneumonia. But I still cough a lot, have an upset stomach, and a minor headache. What are my options?