I was given an std test back in 2012. All results were negative. Got married in 2014 and we both took an std test which both came back negative. So now I took another std test in 2016 bc my insurance covers it (just b cause) and now my gyno is stating that I may have a false positive. I have not stepped outside my marriage and my husband has not either. Why am I receiving a possible false positive at this point? I was tested under the igg test. What could be wrong with me?