Do I have Appendicitis?

Ever since yesterday I've been having cramps on my right side and that kind of stomach pain/nausea when you feel like you have to vomit. Every time I stand up I feel shortness of breath and just really hot. I have no appetite, today and yesterday all i've eaten is a total of 4 slices of toast. The cramps are pretty barable, which is why im a little skeptical of it being appendicitis. Any opinions?