I m having pain in my lower right side. It started Friday Feb. 6, 2015 and its now February 10, 2015. Its like a sharp pain every time I put pressure on it. (i.e, walking, running, etc) I have had diarrhea. I looked up appendicitis and I m not 100% positive I have it, Only because I haven t vomited or had a fever yet. I just need to know what it is.