Hi Guys 
Just thought I'd pop in and post an update as you all supported me so much through my pre-Christmas melt down. I want to say Thank you to you all and let know life is far better now than it has been for a long time.
I feel embarrassed actually at the ferocity of my emotions at the time and have thankfully now finally managed to calm down. 
So ... Mother and Father moved house.
I have not seen them since and have not taken any phone calls/texts etc - answer machine messages deleted without hearing, caller ID - not picked up and have Anon caller rejection installed on phone - so my sudden enormous increase in withelds can't get to me either - new sim/number changed in mobile.
I sent one text saying due to the lack of privacy whilst they were living so close I now needed time to be separate from them and to reclaim my own life and space. I also told them this 'state' would apply for the foreseeable future.
I also requested that they not visit without a text or phone call, as if they do I will not be answering the door.
So far I have had only one text that I have read...this was straight after my NC text...it accused me of being bitter and twisted and told me to get on with enjoying my space! Exactly the response I expected/wanted...NC achieved.
It now transpires that before they moved they gave all other family members except me their new phone number....I think the plan was I would have to go and see them so they could show off their new house and entrap me in their new life. To visit would have been my only way of contacting them, as their mobile signal is only active when away from their new house - so I've been told via other family members. I am ignoring the contact by proxy for now 'til I am more calm and settled in my newly found 'seperateness'. Contact by proxy is due to be dealt with during the next few weeks, for me NC really does have to be NC.
I think their plan backfired though - I don't want/need their new phone number as I have realised I have nothing left to say to them.
So finally life is now peaceful, calm, relaxed and gradually balancing itself out to something resembling a life I choose to be living rather than one I am just about surviving.
I hope you are all feeling more peaceful too and if not I hope you achieve it very soon, thanks for everything over Christmas you all being here helped so very, very much. xx