I have a circuit that has 3 outlets that work fine. Then there is a GFI Outlet which also works fine. There are four outlets and two small wall sconce lights that do not work. Using a plug tester (the little thing that plugs into a socket that has three lights) the 4 outlets say they are connected normal. As soon as there is a load applied, the indicators change to say that the HOT and GROUND are reversed. Nothing works when plugged in to these outlets. Additionally, if either (or both) wall sconce light(s) are turned on, the outlet changes from normal to HOT & GROUND REVERSED. It worked fine the other day. I was out all day the next day and there was an electrical storm while I was gone. That evening the above situation existed. I can't figure it out. Any ideas?