Nauseous/ Vomiting

Jamie
I am 37/6. All weekend I have been feeling miserable with terrible acid reflux/ heartburn, no appetite, and random cramping but pretty consistent rock hard belly. Today I started feeling very nauseous and at one point ran to the bathroom think I I was going to vomit but never did. Is this early labor or could active labor be closer then I think? I was induced with my son and have no idea what to expect!!