I have exactly the same problem. I have just got back into paddling after many years off and I have developed tennis elbow in the right elbow and golfers elbow in the left. I have been to the physiotherapist and he has given me exercises to do but sometimes the elbows are just too painful for me to be able to do them. I have tried anti-inflamatories without success. From what I can figure out, the only way to get better is to stop paddling, but I have a race in April that I need to be fit for. Strange thing is that the elbows are reasonably OK when paddling, it just hurts afterwards and I cant do a proper gym session. Would love to hear if anyone has had this problem and has fixed it.