Hey there....sorry to hear that your appointment was so crappy!!
It sounds like you should go see another doctor before you make any decisions like that. This guys doesn't sound like he knows too much....
It's funny that he said he hadn't prescribed Dicetel or Modulon in over a decade because these drugs have only been available a few years.
I would definately get another opinion.
Try to cheer up...I know it's hard but the more stressed you get the worse you're gonna feel and that's just no good!! You are on your way to finding out exactly what is going on....you won't feel like this forever....you just gotta push through this tough spell right now....and we're all here for you!! *BIG HUGS*