Any advice?

I am currently 26 weeks pregnant. I haven't thrown up since I was about 12 years old, until now. I have puked multiple times and had diarrhea since 2 pm yesterday. I've been trying to stay hydrated, but literally throwing up water at this point. I am 99% sure it is food poisoning because of something I ate yesterday. Should I go to the ER or just tough it out? First pregnancy, so everything freaks me out about my little one :(