Chronic Throat Pain

[ThroatPain1984]

Please help!!!! I have been suffering with my throat for over a year now, have been to numerous doctors, had several tests, tried several medications (including prescription, over-the- counter, and herbal remedies), literally spent hundreds of dollars and nothing has helped and no one can tell me what's wrong!!! It started over a year ago with a feeling like I have something stuck in my throat. I also started spitting up white foamy stuff several times a day ( see picture). Now I still have the feeling of something being stuck and am spitting the white stuff but I also have constant throat pain like a sore throat ALL the time, around the clock!!!!!! Also there is a feeling of dryness in my throat and mouth!!! Nothing gives me relief!!! I saw 3 ENT doctors and they all said my throat looks normal. They had me take antibiotics and even some kind of steroid but that didn't help!! I went to 2 gastroenterologists thinking it might be acid reflux causing the pain....They had me take about 3 months worth of Dexilant and Nexium treatment but it didn't help. I thought it might be tonsil stones so I took a treatment for that but it didn't help and 3rd ENT doctor said tonsils look normal. I went to an allergist and found out I have allergies ( to pollen, grass, dust, and pets) so I began taking Flonase, Zyrtec, and Mucinex D, but this did not help either. Upper GI tract test came back normal. Thyriod gland test came back normal. Chest x-ray came back normal. I'm otherwise healthy. Please someone help!!!!!!! What else could be causing my throat problems and what should I take for it??????