Elbow pain!

Hi there, I am a 24 year old Masters / recreational - level swimmer. I have been swimming for seven years now with no injuries. About two months ago, I suffered a repetitive stress injury at work (I am a research scientist) on my left arm. I have been diagnosed with medial elbow tedinitis and wrist tendinitis. My problem now is that on almost every stroke I take in the pool (free, ***, fly, back are all effected), I have pain in my medial left elbow. Can I modify my technique in any way to relieve the pressure on the elbow? Has anyone else had this problem before? Swimming is my passion, and I am very scared by the level of this pain. By the way, I have modified my activities at work, it is with swimming that I have most of my pain now. Thank you for your help!