So my friend's got me all paranoid now...Appendicitis?

Appendicitis? Where did you get this from, I have had this before and it was incredibly painful that I couldn't handle it, I couldn't get out of bed and had to be brought to hospital because the pain was unbearable for a long amount of time. It would also be in the stomach area.. not in your hip. I suggest you take a few days off work and relax, if this continues see your GP. Best of luck