NEED HELP! TMI WARNING! So last night at about 9 I started having bad braxton hicks (I assumed) that…

NEED HELP! TMI WARNING!

So last night at about 9 I started having bad braxton hicks (I assumed) that came every 5-10 mins till about 3am and then happened whenever I slightly moved. I also started having really liquidy #2s and threw every bit of my supper up a few hours into the night. I only puked once, but I haven't stopped going to the bathroom all night and the pain is constant now with random excruciating spikes. I can't hardly breathe and the pressure in my chest and belly is unbearable. I have been drinking water all morning and almost all day yesterday minus a coke when I woke up. what could this be?