Hey there, hope you found some peace and sleep after your post. Have you had a look into some of the useful tool through something like DBT or CBT? When you're in that state its hard to be able to think clearly, or even pause for a breath! I have spent a lot of the last few months starting to try and develop more awareness of these situations, when I am getting dysregulated, potentially dissociating, and yes the anxiety! The crippling anxiety and hypervigilance. I suffer from panic attacks as well, I started a technique where when I start to feel that 'feeling' of blood pumping, heart rate increases, a fear creeps over you...I try and see what's happening for what it is (its dysregulation of the nervous system because of the trauma wounds), and have started saying out loud "You're ok. You are safe right now, it isn't happening again. You can be calm and safe now", the 5 sense trick works a treat which is something like find 5 things you can see, 4 things you can touch, 3 things you can feel or smell....the general idea is than you focus your mind onto external things and it does really help you almost give the hypervigilance a moment to go, "Oh, I am not needed now". Check out DBT as well. they have some really good Distraction techniques, etc. Also you may want to consider a trip to a decent Psychiatrist, as you might benefit from some meds temporarily to just give your system that initial "stablisatiion phase".