I'm only young. I have this problem that occured just coming back from a trip. When I eat food this thing appears in  my throat where when I swallow it doesn't go down at all. It scares me alot. Im not aware of any allergies, no history of it. Im not on any medical medication. It appeared just randomly and I dont know why. Im scared please help. I need awnsers because when I go to bed im scared its going to swell up or something when I sleep. -KH