I have extreme stomach pains and everytime i consume something i get to have diarrhea, at times i am hot and at times i am very cold, this has been happening since last friday and the pains don't seem to go away. what could i be experiencing?

As there are several possible causes for these symptoms, such as infection (virus, bacteria, parasite) or food intolerance or other underlying intestinal problems causing inflammation in the intestines, I would recommend that you be seen by a doctor to properly evaluate this. Meanwhile, stick to a bland diet, drink plenty of fluids, and make sure you are urinating.