Foreign body sensation in the throat.. Even after taking medication at the hospital, it doesn't go away.

When I eat food, I feel like it doesn't go down easily through my throat. Because of this, I went to an ENT specialist and had my throat examined with a camera, and they also took a picture of my throat. They said it might be reflux esophagitis, so I took medication for quite a long time. However, the symptoms did not improve, so I visited another ENT specialist who prescribed antibiotics. Still, I didn't get better, so I had an endoscopy to check my stomach. I wondered if there was a problem with my esophagus, but they said there was no abnormality. The issue is... I constantly feel a foreign body sensation as if food is stuck in my throat, which is uncomfortable and difficult. I can't tell if the treatment isn't working or if it's just not possible to cure it. I've also heard that as we age, the esophageal sphincter loses its elasticity, which might be related. ㅠㅠ Has anyone recovered from similar symptoms?