I know being given a diagnosis caqn be upsetting. The good news is that you can recover from PTSD. It takes time and work but my life got SOOOO much better when I started pulling up the memories and talking about them. Find a really good therapist. Find someone who has been doing t for a while but keeps up with the latest trends. Find someone who believes you can recover, because you can! The other really cool thing about working through my memories was that when I did, the phobias associated with them either quelled or went away entirely. I'm sure it feels like a blow but believe it or not it can be a really [posative thing. Now that you know what the problem is you can heal. I'm totally with you on the nightmare stuff. I know I need to go to bed tonight but I'm afraid to. The nightmares come and go now, right now they're lurking.
Good luck to you! If you can find a therapist who specializes in PTSD that would be great. One resource might be the local Veteran's Administration. Try to remember that it will get better! Annie