What happened my throat?

I am 33 years old man i had suffering with throat pain and discomfort during swollowing from feb 12 on words Early monrning i awaken up i have pain in throat then i had tea i got relief from the pain.Day time i driving the vehicle A/c affect my throat is dry and start pain. some time i feel moving some objects my throat.two weaks before i consult with ENT specialit Dr diagnosed GERD and give the medications like Tab Rantac (Glotac)150 mg BD half an hour before food and adviced upto 3 months taken.now I takeing treatment but not relief please give the answer