In reply to turtlespit: See a doctor or physio and get it properly diagnosed(I can recommend a physio in Leeds).
I had elbow pain, I found climbing eased the pain once I had warmed up, but if I rested for a few days the aches got worse, classic symptoms. I continued climbing for six months and it didn't affect my grade, but the aches in the following days got worse with time, and were there as soon as I woke in the morning.
I went to a physio and he diagnosed lateral tendonosis (tennis) but also a radial nerve syndrome, not the first time he had seen this in a climber!
I am 6 weeks into treatment which includes
Nerve gliding exercises
Eccentric exercises
Muscle stretches
Massage
Powerball (only just got this so not used it yet)
Physio is happy for me to climb at a very low intensity with the aim of building things up really slowly.
Things seem to be heading in the right direction but you need to compare your progress over weeks to notice the difference. The aim is to be pain free climbing at a reasonable level by Easter and back to my best by May.
As an indication of indoor grades I was climbing indoors 2 to 3 times a week last winter at f6c. I am currently climbing once a week at f4+/f5 and just increasing it to twice a week, I hope to up the grade to f6a at the end of January.