Suddenly sick

I've been very lucky through this pregnancy and haven't really been sick. I'm almost 26 weeks and for two days, suddenly I have constant reflux where I'm getting bike up my throat and in my mouth ALL the time. Stomach empty? Bile gag. Eat something? Chunky bile gag (sorry, I know, TMI). I don't know what is suddenly wrong! I'm trying to eat things that usually settle my tummy but nothing is helping. I'm kind of stressed about some family stuff but don't think it'd have this kind of effect this quickly? Suggestions? Anyone else get this out of nowhere???