I need help, I had to go to the restroom right now and my stomach got really hard I started feeling like I need to throw…

I need help, I had to go to the restroom right now and my stomach got really hard I started feeling like I need to throw up a lot of discharge came out and when I was cleaning myself I noticed my vagina was opened up a lil more than usual, and now I feel uncomfortable walking around I feel open

What is this??