hi.the pain what you have described is very typical of appendicitis
which starts at umbilicus
(belly button) and goes to right iliac fossa
( right lower abdomen).this type of pain may be very sharp and may be associated with nausea, vomiting, fever and sometimes diarrhoea.
since the pain is now 2 week old it might have gone to subacute appendicitis.
other possibilities are colitis, Meckel's diverticulitis
your previous episode seems to be a different one.
so my advice is get yourself examined and investigated by a surgeon as early as possible to come to a diagnosis and treatment accordingly.
hoped i have helped you.