AcidReflex and some sensation in throat.

I have been dealing with jaw pain under the ear lobe and neck pain for an year now. Have seen ENT, OMFS and no definite diagnosis. I have throat pain and feel of Something stuck in throat and feel like poking through. Saw a second ent in April to get an opinion about jaw,neck pain.He did nasal scope and noticed some redness. He said it could be reflex. I never had reflex issues before. He mentioned that erythema and edema of post cricoid area in the nasal scope. Told me to take tagamet medicine for reflex for 2 or 3 weeks. He said this is not relevant to my jaw and neck pain and asked me to check with someone. I took tagamet on and off. I still have that sensation in the throat. Last week I used new bottle of mouth wash(same brand which I used before). I noticed redness, mild swelling under tongue.took ibuprofen for 2 days. Redness reduced but Swelling still there. Also, have more burning sensation/sore in throat and tongue upper side. Underside of tongue is greyish.is this GERD?