2 years ago i had a sinus infection and was treated for that but ever since then ive been experiencing post nasal drip. I also have this tightness in my forehead and pain in the back of my head/neck, its always there. Ive had a ctscan which was clear and i had deviated septum fixed. Ive been allergy tested, no allergies. Im now being treated for acid reflux and taking 40mg prescription prilosec daily. Not helping. The only symptoms i have are wanting to clear my throat pretty much constantly, my throat feeling raw and like something is stuck in the back and the head pain. Ive seen 2 ents, allergist and 2 physicians. I have not been scoped yet, but i feel i am just baffling everyone. Ive tried allergy meds, steroids, nasal sprays, painkillers. I just feel lost, could this actually be gerd or may it be something else, and if so what else? I am a very healthy 24 year old, i have never smoked but i was around a chronic smoker when this all began.