Difficulty in swallowing and weight loss

I had endoscopy today and the report said everything is normal in my upper gi endoscopy. Doctor said there is no problem. Dont think too much and try to eat liquid food for few days and then skip to solid food. But the problem is I have been on liquid diet since 1 month n my weight has gone down by 7kgs. I m really worried. Whenevr I try to swallow food it gets struck in the throat or Idk if I feel it gets struck then my heart rate increases n hyperventilating starts which is very scary. I couldnt get back to normal after that episode. I dont know if this is a problem with my throat or my lungs or my brain. I dont know who to consult too. I got chest xray done which was normal again. I regularly check up on oximeter n it shows above 96 reading which is normal according to a doc I went after one of such attack. Kindly suggest what is going on with me.