Should I go to Doctor?

So I have asked my Husband for a divorce, we are in the process of getting things going and listing our house etc. I have been living with my parents and they have been so kind. Well my nerves are all over the place and I can't keep food in. I can eat a chicken breast with veggies and once I eat that within an hour I have diarrhea. I can't even eat anything without my stomach making my insides turn and twist and then I almost shit myself. I can have liquids so I have made a lot of tea, smoothies and Gatorade. And that's my meals. This has been going on for 4 weeks now and I'm so so hungry!!!