In reply to Sto_Helit:
Sorry to hear you're injured. Sounds like you're waiting for an NHS physio then? You might want to consider going private: get seen straight away and get to choose your physio. Try to find one who is recommended, particularly from other climbers. If you get the NHS appointment go to that too as a second opinion is often worth getting.
In Sheffield I can recommend Steve Hodgson:
http://www.hallamshirephysiotherapy.com/staff-profiles/
I know other climbers who have had success with him too and he is generally keen to get climbers back climbing asap.
The most important thing in my experience is getting the right diagnosis. A lot of stuff can be treated at home with massage, weight training etc. but without getting a correct diagnosis you can't move forward.
> Was thinking I could just climb one handed on slabs until I know more.
What would your purpose be for this? Staying fit, seeing friends or what. If you want to stay in shape there are much better ways to go about it but you don't need to climb to do it: weights, bar work, rings etc - whatever doesn't exacerbate your injury.
You might want to check out the recent Dave Macleod interview on Training Beta. Some of it is about injuries, about taking responsibilities for injuries, his own personal experiences with injury and training around injury.
https://www.trainingbeta.com/media/dave-macleod/?portfolioID=3838