Throat problems 5 months after Tonsillectomy!

Hi All im needing help as I have been to 3 Different ENT's and 2 different doctors and still having the same problem!! Its been 5 Months now after having my tonsils out and the problem I have is After eating I get a bad food taste and smell in throat ,stinging sensation sitting behind the top of my adenoid-Soft palate area and which in affect giving me a bad headache behind my neck area! Concerned as nothing is working! doctors have given me heart burn medication for acid reflux, Nasal Drip Spray,Saline Nasal Rinser, Nasal Spray antibiotics, muscle relaxer antibiotics, Normal Antibiotics which all these work as a temp reliever but still comes back losing hope thanks tonsillectomy