PTSD and OBGYN

I have PTSD from a 10 month long relationship 2 years ago, sexual and emotional abuse. I think I should see an ONGYN, but I don’t know if I can handle it. Getting cortisone shots in my back for pain was super invasive and I cried for 12 hours. I’m having a hard time balancing physical needs while maintaining a healthy mental state. (I see my therapist next week). I’m really just looking for support and advice.