Look, I guess it depends on what you really want to do and your personal circumstances.
Nursing as a career seems to have many options (I know nothing about it though have been involved extensively in career counselling).
Perhaps as a step you might get some impartial advice from one of the bigger specialist agencies?
This one caught my eye on a web search - its UK offices are in London though.
http://www.genevahealth.co.uk/page-health_what _we_offer_uk.html
Even if you don't want to / intend to register, it might help to speak to someone outside the work environment but inside the profession.
But maybe you are looking to transfer from nursing completely.