Been pain free for almost a year. Had a microdisectomy/laminectomy Mar 2015., been pain free since. With that said, starting this week I'm starting to notice the pain is coming back down my left leg. Not continuous but there. Did some sleigh riding and shoveling of snow last weekend. Not big falls or bumps. Could it be a flare up or possibly reherniation? Is there a possibility of having a flare up rather than reherniation? Thanks!