I have a friend who suffers from an anxiety disorder and the first symptom she gets when she's getting an attack is feeling like she has a lump in her throat and is unable to swallow properly. Fortunately, this has gone on for long enough she recognizes this for what it is-- ANXIETY.

You've had an ENT check you out and I think you can feel safe when that ENT says this is anxiety, not cancer. Now you need to take the next step and get yourself to a good psychiatrist. Anxiety attacks can be seriously disabling. But they are not what this forum is here for.