The doctors etc have said it is like chronic PTSD (invented term - think of coming back from war as acute PTSD). In essence I have a permanent low level 'shell shock'.
Because I'm unable to initiate things, I rarely experience any content - so my anxiety rarely presents itself, as I'm sort of staring at walls a lot.
For example - I've wanted to go to bed for the last 3 hours, but have been unable to as I've not been able to take that action.