I've Had This Tightening In My Throat For Over 3

I've had this tightening in my throat for over 3 years now. I couldn't eat solid food for over a year and still have trouble when I do. I've had 2 endoscopys, prescription meds for acid reflux, barium swallow, x rays, blood drawn, ultra sound on throat, widening with the ballon in my esophagus and nothing is being shown. One specialist said he thinks the problem is steming from reflux. I need this gone cause I can't eat normal and haven't for over 3 years now. The feeling never goes away and is there 24/7. I need this gone! Any help is appreciated.