When I was leaving home this evening, I put my car in drive and it would not move and the engine didn’t rev. I tried Reverse and the same thing, it barely moved and the engine didn’t rev. I put it in park and neutral and the engine reved. I turned the car off then attempted to start it then the car acted like the battery was dying and wouldn’t start. I drove it home from work just an hour earlier with no problem. Does anyone know what this could be