I feel like something is stuck on the left side of my throat. Way at the end of my tongue. There is nothing there, I have already checked. I woke up with this stinging pain three days ago and the pain just comes and goes depending on what i am doing, for instance when i sneeze or yawn. i would ignore it but when there is no stinging pain, there s this constant feeling of irritation back there and whatever is causing it is making me want to cough constantly. Thank you for your help.