disclaimer: ECT scares the crap out of me and I am horribly staunch in my refusal to EVER be put through it...

That said, I highly recommend a specialized trauma treatment program for your PTSD before you consider ECT. It can make all the difference. I had been on countless meds (anti-depressants, anti-anxiety, mood stabilizers, anti-psychotics, off-label meds for depression and PTSD, all meds suggested for treatment of PTSD, several combinations of any or all of the above), and was in and out of the hospital roughly 20+ times in one year, several times close to death due to an OD or self-harm (not related to suicide attempts, but seen as such by the doctors because of their severity). That last time in 2011, the psychiatrist tried to force me into ECT (by attempting to have a judge declare me incompetent, but that did not work). My therapist (who specializes in trauma treatment) was against the idea of ECT, and i trusted her. She helped me advocate for a trauma specialty inpatient center, and I went to one in Washington DC. That 2 weeks made a HUGE difference and snapped me out of my cycle. Not only was there actual intensive therapy there, but they got me started on my trauma work in greater detail. I wish my insurance had not forced my discharge after a brief 10-day stay, but even that worked wonders. If you have the means, try looking into a specialized program for your type of trauma. The Sidran Institute has a comprehensive list of trauma centers throughout the US. (found here). Check it out, it may work better for you.