I never saw a doctor for it, but looking back I think I did suffer from Post Tramautic Stress Disorder...and if that was what it was, it went on for years.
In college I was woken up one night by the sound of the fire alarm. A hot water pipe had burst in my room and the room was filled with steam (which looked like smoke to me) and the floor was covered with two inches of scalding hot water (which felt like fire). I jumped out of bed and half awake, my first instinct was to flee since I thought the building was on fire. My feet were burned pretty badly since I ran through the water and I was taken to the ER. Thankfully, no permanent physical damage.
Anyway for years after that I would have night terrors where I would jump out of bed and start running. Once I made it to the front door and had it open when my family found me. When I got married, DH would make a joke and say he was scared that I'd take off into the night so he made me sleep on the inside of the bed. When he felt me jump up (half asleep) and get ready to run, he'd put his arm over me and push me back into bed. This went on for years. I want to say maybe 5 years or so.