Hi there I have severe knee problems in my left leg. I use a cane on my left side and have been for about 4 months right now waiting for MRI and specialists. My left arm has been sore for about a month now and has been progressively getting worse. I can barely lift anything now with my left arm. Has anyone else experienced this, and could it be a side effect from using the cane ? Any suggestions on how to get rid of the pain ?