Don't feel like you are alone. Cigarette smoke is one of my triggers too. I was date raped by a smoker. Most of the time it reminds me and makes me uncomfortable and that is all. But sometimes smelling cigarette smell puts me in panic mode where I will run away from someone.

I have PTSD so bad from multiple traumas that the therapist doesn't know what to do with me. One therapist did EMDR on me for several months which made me worse. My new therapist says EMDR is too extreme for someone with complex-PTSD. So I am doing CBT with her now though to be honest that doesn't seem to help much either. Maybe a little, but at least she's not made it worse like the first one did.