Hey there! As by your description, it seems like medial epicondylitis or golfers elbow. Please stop doing stretching, as it would aggravate the pain. Do icing over the painfull area for about 15 minutes. You need to visit a physiotherapist who would check you properly and if golfers elbow diagnosed, would proceed with treatment protocol including electrical stimulation, ultrasound, TENS, gentle effleurage or massage during the first 2 weeks and then proceed with active and resistive movements for complete treatment. You would need a offline or face to face guidance as the therapist would first treat your pain and then as by noting your recovery stage, would advice you the required exercises.
At present, please do icing and avoid giving stress to your elbow while working on the computer and as you are in a IT job, it is essential to keep changing your hand positions while working. Remember not to stretch.
Next Steps
visit a physiotherapist.
Health Tips
avoid doing forceful or Jerky movements with hands.