Sorry to hear this Purple. You have the basics down pretty good. Something triggered you and whatever it is (you may never know) is intent on hanging around.
Here are some other things I do that are a bit more drastic. I put a rubberband on my wrist and snap it. I put an orange in the freezer and take it out and hold it in my hand, or ice cubes will work just as well. I wrap myself in a blanket (like a newborn baby) and rock myself.
I love to do collages. I get old National Geographic magazines and tear out pictures that resemble an emotion I "may be feeling but am not aware I am feeling" and paste it on poster board or anywhere will be fine. Then step back and take a look at it. Sometimes I have to look at it for awhile to start to see the message my emotions are trying to tell me.
Once you feel you are starting to dissociate, distract yourself or redirect your energies. Get up and move out of the room that you were experiencing these feelings too.
Can you increase any of your anti-anxiety meds (safely) or call a prescribing doc to discuss what is happening to you?
Do you feel safe now, or do you feel you need to get to an emergency hospital due to the increasing frequency of dissociation. Can you call anyone to come and sit with you?
Glad you are sharing this with us Purple. I am hopeful some of the ideas we are discussing will help. Keep us posted. Will be thinking of you today