Last night I just kept feeling off, I'd be laying down doing nothing and suddenly feel so so sick..that feeling would last about 5mins, then go away, and come back like 10mins later. And now today I was feeling sick again off and on, and kept getting extremely warm randomly, then suddenly feel freezing. I know I'm not sick, cause I don't feel sick sick..could this be a sign of labor starting? I know with my aunt she thought she was sick with the flu but was actually in labor..