question for moms with a high pain tolerance

I'm 38w1d and I've been having false contractions for over a week. Today I started having contractions as usual and ignored them first but usually they go away after a couple hours. They haven't gone away but they're getting slightly stronger. They aren't really painful but very VERY annoying. They're also getting to the point that I can't eat or sit still. And they've been making me really nauseous for the past 30ish minutes. Does this sound like it could be actual labor coming on or something else?