Hello and thank you for all the good luck wishes for today, it meant a lot.
The meeting went really well. The union rep didn't turn up though, which is not like her. However, since receiving correspondence from occ health, bitch boss has realised that she made a huge mistake in the way that she managed my last phased return! She was genuinely upset when she realised that, her not following the original PLAN contributed to my being of again and massively hindered my recovery. I think she was very shocked that I felt the need to have union representation with me. I calmly explained how important it was that the plan should have been followed. Initially, she couldn't see why I would need to be office based for the first 2 weeks, I explained that it was to get back into the routine of getting up, ready and out and being out of the house for 9 hours a day. Last time, I wasn't allowed to be office based and had to go back out into the clinical area, dealing with patients and ended up being exhausted with the sheer effort of it, hence, why I got tearful on my last day. This led to her thinking that I wasn't coping and her sending me home.
I was really nervous but was polite, composed and reasonable. She APOLOGISED for her mistakes and was genuinely mortified. She agreed to let me do whatever I feel is best this time round, which is following the original plan.
I return to work on 15th jan for 2 days office based for the first 2 weeks then start working with someone, gradually increasing my hours as I feel able. I also have a weeks holiday in lieu to use, so I gave her the option of me tagging it on to the end of my sick note or taking one day a week for 4 weeks. We agreed to take one day per week. I am so relieved that this has worked out and she has realised what she had done. I do appreciate that she didn't set out to hurt me and that she thought she was acting in my best interests although she was wrong
We are friends again and I have sort of forgiven her. 
I feel like a weight has been lifted.
Sorry for the essay and I love you all 