I can't remember the date that I was first diagnosed, but I remember I went to the doctor with pain in my chest, actually it was my breast bone that hurt. That was when I was diagnosed, It was in 1996 I think. I didn't begin to get severe symptoms after a cow jumped on me and I had a severe one sided whip lash. Then they prescribed amitriptoline and a prescription ant acid and some pain killers I can't remember the name of. Those really messed me up so stopped taking all of those and started treating myself with supplements, I've done better since then.