I am 49 years old about 5ft 6 inches and weigh about 74 kg. I have just started having a little pain in my knees when I read my bike but yesterday I started working out at the gym. When I everything was going fine until I tried the exercise where your elbows are pointed out from your body and you pull the weights down. There was pain in my right elbow as I tried to do it. It seems to become less painful the more I did it but the next morning it was hurting with all movement
it may be a tennis elbow.. you should start ultra sound massage therapy and icing and exercise for tennis elbow at any physio or occupational therapy expert near by you.