I had a substantial injury to my sternum and had the local cortisone injections. I had 2 shots the first time then 2 werks later I had 3 shots. After the 1st set of injections I had no change in anything hormonal that was visible. However, now I have had a large amount of very dark discharge for 3 weeks and stomach pain. This is not normal at all and I learned that the injection is steriod. Would it cause this change? Or do I need to see a doctor sooner rather then later.