What type of sickness do I have?

I work in a nursing home as a CNA and diahrea has been floating around. Where I work they don't take the necessary steps to make sure that everyone stays safe including staff because they only care about money. a day or two ago after I left work I was fine. just couldn't have a bowel movement. I didn't know what's wrong. so then I started my period and I thought that's what was wrong, except my stomach was making awful noises and I went to the bathroom and it was like I peed out of my butt. straight water poop. this happens every 5-15 minutes. I have waited a day to see if it would go away and it still hasn't. so last night I actually was to the point where I vomited. I have to work today but I am too scared to call in because they are already short staffed for today. what could be wrong with me? I also have a very dry mouth and I have drinken a bunch of water