A disease that causes bouts of crippling insecurity. You're so insecure because your peers laugh at you behind your back and you know it. This leads you to think that EVERYONE in the world is taking a shot at you when it's just people in your own specific profession, e.g. other comedians.
Often you try to fight through the insecurity by bringing attention onto yourself and rambling on for twenty minutes without being funny, then when it doesn't go over you lash out at the nearest person, do a few pull-ups and cry yourself to sleep.
Phil: "The whole world hates me, I'm so sad"
Derek: "The whole world doesn't hate you, you've got Eddie Ifft Syndrome, you're just not as funny as you think you are"