Yeah its hard to say exactly when the symptoms started. I have been diagnosed with late onset PTSD (triggered by work related stessors/issues) as a result of childhood sexual abuse. So, Ive just been diagnosed and I'm 29. However, I've always had some symptoms in hindsight, for example have always had nightmares about it, hypervigilance, startle response, problems with intimacy etc. etc. However, my social and occupational functioning was not significantly impaired, until now. The DSM requires significant impairment in these areas for diagnoses to me be made, so yeah I suppose that has occurred now. Stupid delayed onset, how about 'never onset'. Grrrrr.