Water breaking or pee?

I’m 35 weeks and super sick. Was in the bathroom peeing and suddenly the post nasal drip made me want to puke. I get up, puke, and I think pee myself in the floor. However, how do I know this wasn’t amniotic fluid? Am I just paranoid? At this point in pregnancy, everything is wet. I layed down for 30 min and then got up and my pantyliner was a little damp but not really wet. Thoughts?