What a fruitful discussion this was! Thank you Claudiu and Vineeto. You know something has clicked when there is that sense of - “How could I have not seen this all this time!?”. Of course the answer was hiding in plain sight. I’m very happy that these discussions are on the World Wide Web for fellow human beings to make use of and to avoid various pitfalls.
What you wrote Vineeto it really hit bullseye with regards to what has been going on for me. It seems too simple typing it out now 
But just like ‘I’ can get back to feeling good by seeing that ‘I’ am ‘my’ feelings and thus ‘I’ can ‘be’ the felicitous/innoocuos feelings as opposed to the sorrowful and malicious feelings. Well the same thing can be done with these “jitters” - I think this is actually a pretty cool term for these.
Somehow what ‘I’ did was separate ‘myself’ from those jitters. ‘I’ would see them as “screams of a dying entity”, as if the screams and the entity were not ‘me’. At the very worst of all this (and Vineeto you might remember this) ‘I’ was writing about ‘me’ kicking and screaming, as if this “dying entity” was to just go in the corner and die in silence, and stop being such an inconvenience. Of course this entity that ‘I’ had separated ‘myself’ from is - ‘me’.
So these jitters were seen as happening to ‘me’, and so all ‘I’ could apparently do is ride them out, as if waiting for a storm to pass, helpless. Then it clicked today that of course those jitters and all the rest of it - ‘I’ am ‘being’ those things when they are happening, it is ‘me’ after-all.
And what a wonderful thing to discover, because now seeing that ‘I’ am ‘being’ those jitters, ‘I’ am able to get back to ‘being’ naivete. And now ‘I’ see what a callous way it was to behave towards ‘myself’ in this way.
And spending the day today in the bester territory but without this fear of the jitters anymore, it has been incredible.