Thankyou so much ladies for your advice! I took my bike back to the shop I bought it from and the 'guru' fitter picked up that my left hip is lazier than my right (which I can feel when I ride but didn't realise was a problem). The fitter said this would cause my left elbow to compensate. He has heightened my seat a little and advised me to see a physio for some hip exercises. I happen to work with sports med physios who also ride, they have given me a program of exercises. They also feel I am probably doing to much riding as a newbie. I don't care.....I LOVE IT!!