I am an 18 year old female. Since Sunday, I have had no appetite. I have tried to make myself eat, but end up vomiting or spitting it out. I have been nauseated since, as well, including constant diarrhea. I've also been sweating for no apparent reason, have had a headache, been very dizzy, extremely tired, and felt as though my heart is beating out of my chest. I am in college and because of my class schedule, I cannot be seen by the University Health Services at a time that fits with my schedule tomorrow. Should I go to the ER or wait it out?