OK, went to see the specialist today and he confirmed what I had been saying, trapped nerve around C5-7
Got to wait for it to settle down but he has booked me in for an MRI and conductive Nerver tests.
Also have to have physiotherapy.
Could be a disc bulging into the nerve from previous injury, I have a tight muscle in my neck as well that is contracting the vertebrae increasing the load on the nerve.

So all in all, not much changed but at least I have an idea what the issue is!
SK