Suggest Treatment For Persistent Sore Throat And Elevated White Blood Cells

Question : I have been sick with cold symptoms since April 21st ( at least eight weeks ) I have a sore throat on my right side primarily. I tested negative for strep. I have a swollen gland on my right side- thyroid area. It is sore to the touch. My right ear is full and has been since April 21. I saw a ENT and had a hearing test and have lost some hearing. I did a Z-PACK and a steroid shot ( not at the same time ) . I am exhausted. I am becoming emotionally depressed. My white blood cell count was slightly elevated, but the blood draw was during the onset of the infection. I went into a coughing fit today out of nowhere upon drinking an iced tea that caused so much drainage and fluid, that I honestly scared people ( at Target ) . I called doc and asked for a chest Xray. My question: DO I need a thyroid test next? Concerned I am not healing.