Never been formally diagnosed with PTSD but I have the flashbacks you describe. It's not just the Crohn's to be fair: I have gone through other awful things as well. This year I've been less worried about
my Crohn's and freaking out numerous times over my eyes (I have developed chronic uveitis).
I don't have any other advice except talking about
it (preferably with a trained professional) and giving it time - lots and lots of time.
Dx Crohn's in June 2000. (Yay )
Tried: 5-ASAs, azathioprine, 6MP, Remicade, methotrexate, Humira, diets.
1st surgery 20/2/13 - subtotal colectomy with end ileostomy.
2nd surgery 10/7/15 - ileorectal anastomosis. Stoma reversed and ileum connected to the rectum.
Current status: Chronic flare. Do I have any other kind?
Current meds: 50mg 6MP; Entyvio (started 3/11/16)