Last night i got a sharp pain in my lower right stomach that lasted like 5-10 seconds.. then went away &happened again this morning.. is this appendix?

Not likely: Acute appendicitis almost always starts as generalized abdominal pain (or may be centered around the belly button) and only later moves to the right lower abdomen. It starts as crampy pain and becomes sharp later, when it moves the right side. By then peritonitis has started, which means the person is getting very sick with fever and is very tender.