Just had the weirdest thing happen to me... So I like my warm drawn-out baths & I was taking one,…

Just had the weirdest thing happen to me... So I like my warm drawn-out baths & I was taking one, then all the sudden I started sweating, contracting and feeling just awful. TMI on this next part probably but... Then I felt like I had to go to the bathroom & definitely went a lot. I have no idea where this came from? I always take warm (not hot) baths, and I'm always fine after. I'm okay now though. Anyone else ever experience this?