Throat Issues Since Last Week, Anxiety is taking its toll...

It all started last Thursday when I ate some Cracker Jack. I choked on some, and immediately coughed it right back up. Ever since then I've had this feeling like I have a kernel or popcorn shell in my throat. I tried taking it out (gargling, eating bread, and even sticking my finger back there.) It made it worse! Due to my nervous nature and to my anxiety, I checked into the emergency room. Strep Tests were done, all negative. Still I felt that they didn't really check for any blockage or food particles. They couldn't find anything, but I was still worried because they didn't take an X-Ray. I went home, still nervous, slept, everything seemed to be going fine. It wasn't as bad as before, but it was still bothersome. I even went to my GP to check. He checked again, and he couldn't find anything. Still no X-Ray done. Both doctors at the ER and my GP said that I might have scratched my throat with the kernel. I was feeling easier with myself. I was dandy and fine on Tuesday, my "lump" uneasiness was fading away (forgot to mention that my lump was located in my upper throat right and left sides, it would alternate.) I was feeling fine, until I ate dinner that night. Coughed up again, now I felt that there was food stuck in it again, this time the right side of my throat. This was all happening Tuesday night, and all of Wednesday, although after reading some stuff online I've become more anxious. My uncle even insisted that I should take chloroseptic. I took some, still felt that lump and irritation. I felt hopeless. While in the shower I was moving my tongue around and I felt a kernel type particle in the back of my throat. I felt like the more I felt it the worse my throat got, and now it's very irritated. It's scratchy, and I feel like it's just getting worse. My anxiety is acting up, and I'm even having trouble swallowing, but that can be from anxiety. But I forgot to mention that through all of this, I have been breathing normally. I have just been trying to cough or hack out whatever is in there. So I'm asking this... What is wrong, should I see a ENT, and what are some ways I can relax? Thank you very much.