In reply to David Alcock:
Could you just ask the NHS physio to refer you for a scan and then possibly surgery? I had a labrum tear caused by 5 dislocations and so got it operated on, i've never looked back.
It was never as uncomfortable or painful as yours appears to be, aside from the actual moment of dislocation it never caused me any pain, but obviously I couldn't continue to climb hard so I opted for the surgery.
The whole process from seeing my GP to going under the knife only took a couple of months and that was all on the NHS.
5 months of rehab later, the shoulder was great, it's now been 18 months and i've not had a single issue with it and i'm climbing as hard as ever.
I was never urged to 'avoid physical activity' and was told 9/10 people who have the surgery never experience a recurrence of the dislocation, despite a large number of patients being sportsmen, especially rugby players.
Overall I had a pretty decent experience with the NHS, (although their rehab physio was useless so I did seek out my own physio) if you are in pain I think they should be understanding of that and get you the right treatment as quickly as possible.
Best of luck getting sorted!