I have PTSD too. It's a painful struggle to battle the past traumas. Someone told me the only way out is through (by telling my story). That is NOT what I wanted to hear, but there is power in having a voice. I'm still trying to find mine, little bits at a time.
If you can't find someone to talk to right now, write it down, that might give you some time to arrange for additional real life support. Do whatever you need to do to get it out. Keeping it inside makes it grow stronger. I hope this helps...keep posting