Minefield, I'm so sorry for your current difficulties, having to focus on the Government and all their rearranging and paperwork, tribunals, etc.

Any way you can come up with a plan for yourself in case the worst happens; can you sell your car since you can't/don't go out, maybe downsize your living arrangements, find a roomie or group situation, a smaller flat? Do you have any savings at all from when you were working so hard? What do you do with your time now? Any at-home, computer sorts of tasks or part time work you can get paid for? What did you do when you were working?

I'd talk to my doctor's get them to comment louder about your physical problems. Have they given you any counselling for your mental difficulties? I'd request counselling so you could get out of the habit of attacking yourself and thinking of part of you as an evil entity. That isn't helping you?